10294-34-5

Basic information

• Product Name: Boron trichloride
• Synonyms: chloruredebore(french);trichloro-boran;Trichloroborane;Trichloroboron;trichloro-Boron;Trona boron trichloride;Boron chloride;BORON TRICHLORIDE
• CAS NO: 10294-34-5
• Molecular Formula: BCl₃
• Molecular Weight: 117.17
• EINECS: 233-658-4
• Product Categories: Inorganics;BoronChemical Synthesis;Compressed and Liquefied GasesMicro/Nanoelectronics;Electronic Chemicals;Gases;Synthetic Reagents;Boron;BoronSynthetic Reagents;Catalysis and Inorganic Chemistry;Chemical Synthesis;Lewis Acids;25mL Sure/Seal Reagents;Catalysis and Inorganic Chemistry;Chemical Synthesis;Lewis Acids;Organometallic Reagents;Synthetic Reagents;Imidazoles
• Mol File: 10294-34-5.mol
• Article Data: 37

Chemical Properties

• Melting Point: −107 °C(lit.)
• Boiling Point: 12.5 °C(lit.)
• Flash Point: 84 °F
• Appearance: White/Solution
• Density: 1.326 g/mL at 25 °C
• Vapor Density: 4.05 (vs air)
• Vapor Pressure: 29.72 psi ( 55 °C)
• Storage Temp.: 2-8°C
• Solubility: Miscible with dichloromethane, ethanol, carbon tetrachloride, di
• Water Solubility: decomposes
• Sensitive: Moisture Sensitive
• Stability: Unstable. Incompatible with metals. Reacts violently with water. Reacts vigorously with aniline, phosphine, dinitrogen tetroxide
• Merck: 14,1348
• CAS DataBase Reference: Boron trichloride(CAS DataBase Reference)
• NIST Chemistry Reference: Boron trichloride(10294-34-5)
• EPA Substance Registry System: Boron trichloride(10294-34-5)

Safety Data

• Hazard Codes: T+,T,N,F
• Statements: 14-26/28-36/37/38-40-67-65-62-51/53-48/20-34-11-50/53-26/27/28-63-39/23/24/25-24-21-10
• Safety Statements: 9-26-28-36/37/39-45-8-61-38-28A-16-1-60-33-23-7/9-62-36/37
• RIDADR: UN 3390 6.1/PG 1
• WGK Germany: 3
• RTECS: ED1925000
• F: 10-21
• TSCA: Yes
• HazardClass: 2.3
• PackingGroup: II
• Hazardous Substances Data: 10294-34-5(Hazardous Substances Data)

Usage

Chemical Description

Boron trichloride is a boron compound used as a reactant.

Description

Boron trichloride is a colorless, acid gas that fumes in the presence of moist air. It is packaged in steel cylinders as a liquid under its own vapor pressure of 19.1 psia (132 kPa, abs) at 70°F (21.1°C). It reacts with water or moist air to produce hydrochloric and boric acid.

Chemical Properties

Boron trichloride is a colorless gas with a pungent odor. It reacts violently with water, and on decomposition and hydrolysis yields hydrochloric and boric acid. It has a pungent, highly irritating odor. Occupational exposure to boron and boron compounds can occur in industries that produce special glass, washing powder, soap and cosmetics, leather, cement, etc.

Uses

Different sources of media describe the Uses of 10294-34-5 differently. You can refer to the following data:
1. Boron trichloride is a Lewis acid, forming stable addition compounds with such donors as ammonia and the amines and is used in the laboratory to promote reactions that liberate these donors. The compound is important industrially as a source of pure boron (reduction with hydrogen) for the electronics industry. It is also used for the preparation of boranes by reaction with metal hydrides.
2. manufacture of and purification of boron; as catalyst for organic reactions; in semiconductors; in bonding of iron, steels; in purification of metal alloys to remove oxides, nitrides and carbides.
3. Boron trichloride is used in the refining of aluminum, copper, magnesium, and zinc to remove oxides, nitrides, and carbides trom the molten metal. Carbon monoxide, hydrogen, and nitrogen can be removed from an aluminum melt by treating with boron trichloride. It also improves the tensile strength of aluminum and will allow remelting without a major change in the grain structure. The electronic industry benefits trom boron trichloride in many applications. It is used in the production of optical fibers, as a p-type dopant for thermal diffusion in silicon, and for ion implantation.

Definition

A fuming liquid made by passing dry chlorine over heated boron. It is rapidly hydrolysed by water: BCl3 + 3H2O → 3HCl + H3BO3 As there are only three pairs of shared electrons in the outer shell of the boron atom, boron halides form very stable addition compounds with ammonia by the acceptance of a lone electron pair in a coordinate bond to complete a shared octet.

Preparation

Boron trichloride can be prepared by high temperature chlorination of boron trioxide, boric acid, metal borates or other boron compounds. Chlorine, hydrogen chloride, phosgene, silicon tetrachloride, metal chlorides, carbontetrachloride, sulfuryl chloride and phosphorus tri- and pentachlorides are some of the common chlorinating agents. The reaction is carried out at temperatures varying between 400° to 1,400°C, depending on the reactants used. In commercial processes, carbon is generally used to reduce boron oxide during its chlorination. Some of the preparative reactions are outlined below: B2O3 + 2PCl3 → 2BCl3 + P2O3 2B2O3 + 3CCl4 → 4BCl3 + 3CO2 B2O3 + 3C+ 3Cl2 → 2BCl3 + 3CO 2B(OH)3 +3C + 3Cl2 → 2BCl3 + 3CO + 3H2O B2O3 + 3C + 6HCl → 2BCl3 + 3CO + 3H2 Na2B4O7 + 7C + 14HCl → 4BCl3 + 2NaCl + 7CO + 7H2 2KBF4 + 3MgCl2 → 2BCl3 + 2KF + 3MgF2 Boron trichloride may also be obtained by high temperature chlorination of boron: 2B + 3Cl2 → 2BCl3 B + 3AgCl → BCl3 + 3Ag In the laboratory, boron trichloride may be made at ordinary temperatures by the reaction of boron trifluoride with aluminum chloride: BF3 + AlCl3 → BCl3 + AlF3

General Description

Boron trichloride appears as a colorless gas with a pungent odor. Fumes irritate the eyes and mucous membranes. Corrosive to metals and tissue and is toxic. Under prolonged exposure to fire or intense heat, the containers may rupture violently and rocket. Used as a catalyst in chemical manufacture, in soldering fluxes, and for many other uses.

Air & Water Reactions

Fumes in air, including moisture in air and soil, to form hydrochloric acid [Merck 11th ed. 1989]. Reacts vigorously with water and forms hydrochloric acid fumes and boric acid.

Reactivity Profile

Boron trichloride vigorously attacks elastomers and packing materials. Contact with Viton, Tygon, Saran and natural and synthetic rubbers is not recommended. Highly corrosive to most metals in the presence of moisture. Reacts energetically with nitrogen dioxide/dinitrogen tetraoxide, aniline, phosphine, triethylsilane, or fat and grease [Mellor 5:132 1946-47]. Reacts exothermically with chemical bases (examples: amines, amides, inorganic hydroxides).

Health Hazard

Boron trichloride is highly irritating and corrosive to the eyes, skin, and mucous membranes of the respiratory and gastrointestinal tracts.may cause severe burns to skin. May result in marked fluid and electrolyte loss and shock. On acute inhalation, boron trichloride result in sneezing, hoarseness, choking, laryngitis, and respiratory tract irritation along with bleeding of the nose and gums, ulceration of the nasal and oral mucosa, bronchitis, pneumonia, dyspnea, chest pain, and pulmonary edema.

Fire Hazard

When heated to decomposition, Boron trichloride emits toxic fumes of chlorides. Boron trichloride will react with water or steam to produce heat, and toxic and corrosive fumes. In hot water, decomposes to hydrochloric acid and boric acid. Fumes and hydrolyzes in moist air to form hydrochloric acid and oily, irritating corrosives. Avoid aniline, hexafluorisopropylidene amino lithium, nitrogen dioxide, phosphine, grease, organic matter, and oxygen. Nitrogen peroxide, phosphine, fat or grease react energetically with Boron trichloride . Oxygen and Boron trichloride react vigorously on sparking. Boron trichloride and aniline react violently in the absence of a coolant or diluent. Stable.

Potential Exposure

Used in refining of aluminum, magnesium, copper alloys, and in polymerization of styrene. Manufacture and purification of boron; catalyst in organic reactions; semiconductors; bonding of iron or steel; purification of metal alloys to remove oxides, nitrides, and carbides; chemical intermediate for boron filaments; soldering flux; electrical resistors; and extinguishing magnesium fires in heat treating furnaces.

Physiological effects

Boron trichloride is irritating and corrosive to all living tissue. Exposure of skin tissue to higher concentrations of boron trichloride or the liquid can cause hydrochloric acid bums and skin lesions resulting in tissue destruction and scarring. Chemical pneumonitis (deep lung inflammation) and pulmonary edema (abnormal fluid buildup in the lungs) result trom excessive exposure to the lower respiratory tract and deep lung. Bums to the eyes result in lesions and possible loss of vision. Symptoms of exposure include tearing of eyes, coughing, labored breathing, and excessive salivary and sputum formation. ACGIH has not established a Threshold Limit Value (TLV?) for boron trichloride. It is recommended that compliance with the 5 ppm ceiling limit (TLV-C) for hydrogen chloride be used.

storage

Boron trichloride cylinders should be protected from physical damage. The cylinders should be stored upright and fi rmly secured to prevent falling or being knocked over, in a cool, dry, well-ventilated area of non-combustible construction away from heavily traffi cked areas and emergency exits

Purification Methods

Purify it (from chlorine) by passage through two mercury-filled bubblers, then fractionally distil it under a slight vacuum. In a more extensive purification the nitrobenzene addition compound is formed by passage of the gas over nitrobenzene in a vacuum system at 10o. Volatile impurities are removed from the crystalline yellow solid by pumping at -20o, and the BCl3 is recovered by warming the addition compound at 50o. Passage through a trap at -78o removes entrained nitrobenzene, the BCl3 finally condensing in a trap at -112o [Brown & Holmes J Am Chem Soc 78 2173 1956]. Also purify it by condensing it into a trap cooled in acetone/Dry-ice, where it is pumped for 15minutes to remove volatile impurities. It is then warmed, recondensed and again pumped. [Gamble Inorg Synth III 27 1950.] TOXIC.

Incompatibilities

Incompatible with lead, graphiteimpregnated asbestos, potassium, sodium. Vigorously attacks elastomers, packing materials, natural and synthetic rubber; viton, tygon, saran, silastic elastomers. Avoid aniline, hexafluorisopropylidene amino lithium, nitrogen dioxide, phosphine, grease, organic matter; and oxygen. Nitrogen peroxide, phosphine. Fat or grease react vigorously with boron trichloride. It reacts with water or steam to produce heat, boric acid, and corrosive hydrochloric acid fumes. Oxygen and boron trichloride react vigorously on sparking. Attacks most metals in the presence of moisture.

Waste Disposal

Return refillable compressed gas cylinders to supplier. Nonrefillable cylinders should be disposed of in accordance with local, state, and federal regulations. Allow remaining gas to vent slowly into atmosphere in an unconfined area or exhaust hood. Refillabletype cylinders should be returned to original supplier with any valve caps and outlet plugs secured and valve protection caps in place.

Precautions

Boron trichloride vigorously attacks elastomers and packing materials, natural and synthetic rubbers. It also reacts energetically with nitrogen dioxide/dinitrogen tetraoxide, aniline, phosphine, triethylsilane, or fat and grease. It reacts exothermically with chemical bases such as amines, amides, and inorganic hydroxides. Occupational workers should use gloves of neoprene or butyl rubber, PVC or polyethylene, safety goggles, or glasses and face shield, and safety shoes.

GRADES AVAILABLE

Boron trichloride is available for commercial and industrial purposes with a minimum purity of99.9 percent by weight.Boron trichloride is also available in ultra high purity grades for use in the electronics industry. Gas purity guidelines have been developed and published by the Semiconductor Equipment and Materials International and can be found in the Book ofSEMI Standards.

InChI:InChI=1/B.3ClH/h;3*1H/q+3;;;/p-3

Synthetic route

boron → boron trichloride (10294-34-5)

Conditions	Yield
In melt Electrolysis; electrolysis in a chloride melt (400-500°C);	100%
With chlorine 400°C;; 6-8 times vac. distn. spect. purity product obtained;
With silver(I) chloride

cyclotriboric acid trimethyl ester (102-24-9) + chlorine (7782-50-5) → boron trioxide + boron trichloride (10294-34-5)

Conditions	Yield
byproducts: HCl, ClCOCl; at room temp.;;	A n/a B 96%

C10H20BCl2N2(1+)*BCl4(1-)=[C10H20BCl2N2]BCl4 → boron trichloride (10294-34-5) + 1,3-di-tert-butyl-2-chloro-2,3-dihydro-1H-1,3,2-diazaborole (64486-90-4)

Conditions	Yield
With sodium amalgam In hexane Ar atmosphere, stiring (overnight in the dark); decantation, filtration, removement of volatiles (vacuum), sublimation (40 to 60°C, 0.01 Torr);	A n/a B 91%

dichloroborane (10325-39-0) → boron trichloride (10294-34-5) + diborane (19287-45-7)

Conditions	Yield
With hydrogen condensation of HBCl2/BCl3/B2H6 mixt. on molecular sieve, heating in H2 stream, BCl3 not adsorbed, B2H6 easily desorbed, strongly adsorbed HBCl2 slowly symmetrysied;	A n/a B 90%
With H2 condensation of HBCl2/BCl3/B2H6 mixt. on molecular sieve, heating in H2 stream, BCl3 not adsorbed, B2H6 easily desorbed, strongly adsorbed HBCl2 slowly symmetrysied;	A n/a B 90%
equil. const. Kx determined at 273 K;

B2Cl4 (13701-67-2) → octaboron octachloride (32915-80-3) + B9Cl9 (31304-34-4) + boron trichloride (10294-34-5)

Conditions	Yield
In tetrachloromethane 100°C, 2 weeks; NMR monitoring; not isolated, detected by NMR;	A 88% B n/a C n/a

aluminium trichloride (7446-70-0) + boron trifluoride (7637-07-2) → aluminum(III) fluoride (7784-18-1) + boron trichloride (10294-34-5)

Conditions	Yield
heating with excess of BF3; condensation of BCl3 in an U-tube cooled the mixt. of CO2 and alcohol; fractionated distn.;	A n/a B 80%
heating with excess of BF3; condensation of BCl3 in an U-tube cooled the mixt. of CO2 and alcohol; fractionated distn.;	A n/a B 80%

1,3-bis(dichloroboryl)propane (89033-11-4) + boron triiodide (13517-10-7) → 1,3-bis(diiodoboryl)propane (157426-91-0) + boron trichloride (10294-34-5)

Conditions	Yield
removal of BCl3 in vacuo;; distillation in vacuo after 4 h;;	A 78% B n/a

pentaborane(9) + diboron tetrachloride (13701-67-2) → monochlorodiborane (17927-57-0) + 1-(dichloroboryl)pentaborane + dichloroborane (10325-39-0) + boron trichloride (10294-34-5) + diborane (19287-45-7)

Conditions

Yield

In neat (no solvent) reaction carried out in Pyrex tubes to which Teflon valves had been sealed or in a N2-filled glovebox; reaction of B2Cl4 with excess B5H9 in a 1:3 mole ratio; vessel allowed to warm from -196 ° C to ambient temp., 20 min at ambient temp.,; fractionation, yield of 1-BCl2B5H8 based upon amt. of B2Cl4 employed: 73%, based upon amt. of B5H9 consumed: 95%; small amts. of B2H6, BCl2H, B2H5Cl, also material insufficiently volatileto move into vac. line formed;;

A n/a B 73% C n/a D n/a E n/a

diphenylboronchloride (3677-81-4) + boron triiodide (13517-10-7) → (diphenyl)iodoborane (17933-05-0) + boron trichloride (10294-34-5)

Conditions	Yield
heating at 130-140°C for 4 h; distn.;	A 72% B n/a

boron trioxide + sodium chloride (7647-14-5) → boron trichloride (10294-34-5)

Conditions	Yield
800-1000°C; ratio B2O3:NaCl=3:1;	60%
800-1000°C; ratio B2O3:NaCl=1:1;	30%
	0%

dichloro(pentafluorophenyl)borane (830-48-8) → bis(pentafluorophenyl)boron chloride (2720-03-8) + boron trichloride (10294-34-5)

Conditions	Yield
In neat (no solvent) pyrolysis at 220°C within 25 hours;;	A 59% B n/a
heating;
heating;

C18H20BCl2N2(1+)*Cl(1-)=[C18H20BCl2N2]Cl → 1,3-bis(2,6-dimethylphenyl)-2-chloro-2,3-dihydro-1H-1,3,2-diazaborole (212375-81-0) + boron trichloride (10294-34-5)

Conditions	Yield
With sodium amalgam In hexane Ar atmosphere, stiring (room temp., 5 d); decantation, removement volatiles (vacuum);	A 55% B n/a

Cl2BNCl(C2H5) (74686-73-0) + diboron tetrachloride (13701-67-2) → N-ethylbis(dichloroboryl)amine (74686-75-2) + boron trichloride (10294-34-5)

Conditions	Yield
under N2, with exclusion of moisture, reagents in 8/4.4 mmol ratio, condensed at -196°C, gently warmed to room temp. for 15 min; BCl3 sepd. by distn.; elem. anal.;	A 37.5% B n/a

2,4-dicarba-closo-heptaborane (20693-69-0) + 1,6-dicarba-closo-decaborane(10) (23704-81-6) → 5-Cl-closo-2,4-C2B5H6 (28347-92-4) + 1,6-C2B8H9-2-(or-3-)Cl + boron trichloride (10294-34-5)

Conditions	Yield
With aluminium trichloride; chlorine In neat (no solvent) byproducts: CH3BCl2, CH2(BCl2)2; addn. of mixt. of B-compds. to NMR tube contg. freshly sublimed AlCl3, addn. of Cl2 gas, warmed from -190°C to room temp. for 3 h; not isolated; detected by NMR;	A 36% B 32% C 4%

5-Cl-closo-2,4-C2B5H6 (28347-92-4) → C2B5H4(CH3)2Cl + C2B5H4(CH3)2Cl + 5-CH3-6-Cl-closo-2,4-C2B5H5 (79550-11-1) + 1,1-bis(dichloroboryl)methane (40710-68-7) + boron trichloride (10294-34-5)

Conditions	Yield
With chloroform In chloroform heating of 5-Cl-2,4-C2B5H6 and CH3Cl in a react. vessel at 126°Cfor 21.0 h; further products; cold-column vac. fractionation at -104 to -29°C; identification by (11)B-NMR;	A n/a B n/a C 34% D n/a E n/a

tris(dichloroboryl)methane (40710-69-8) → boron trichloride (10294-34-5) + hexachloro hexaboraadamantane (54573-10-3)

Conditions	Yield
450°C, sealed tube; cooling to room temp. over 12 h yields crystals, evapn. of volatile products, boraadamantane is sublimated in vac., elem. anal.;	A n/a B 28%

pentaborane(9) + diboron tetrachloride (13701-67-2) → 1-(dichloroboryl)pentaborane + boron trichloride (10294-34-5)

Conditions	Yield
In neat (no solvent) reaction carried out in pyrex tubes to which Teflon valves had been sealed or N2 filled glovebox; reaction of B2Cl4 with excess B5H9 in a 1.0:1.4 mole ratio; vessel allowed to warm from -196 ° C to ambient temp., 25 min at ambient temp.,; fractionation,;	A 26% B n/a
In neat (no solvent) reaction carried out in a Pyrex tubes to which Teflon valves had been sealed, or in a N2-filled glovebox; reaction of B2Cl4 with excess B5H9 in a 2.9:1.0 mole ratio; vessel allowed to warm from -196 ° C to ambient temp., 12 min at ambient temp.,; fractionation, nonvolatile material remained within the vessel, yield of BCl2B5H8 was 8% based upon amt. of B2Cl4, 34% based upon unrecovered b5H9;	A 8% B n/a

1,1-bis(dichloroboryl)methane (40710-68-7) → boron trichloride (10294-34-5) + hexachloro hexaboraadamantane (54573-10-3)

Conditions	Yield
byproducts: HCl; 450°C, sealed tube; cooling to room temp. over 12 h yields crystals, evapn. of volatile products, boraadamantane is sublimated in vac,, elem. anal.;	A n/a B 24%

(azido)dichloroborane (35226-75-6) → hexachlorborazine (19087-72-0) + boron trichloride (10294-34-5)

Conditions	Yield
byproducts: N2; 200°C, in bomb tube;	A n/a B 24%
byproducts: N2; 200°C, in bomb tube;	A n/a B 24%

1-I-B5H8 (30624-33-0) → 1-chloro-pentaborane(9) (19469-13-7) + boron trichloride (10294-34-5) + diborane (19287-45-7)

Conditions	Yield
With mercury dichloride byproducts: H2, HCl; heating in closed react. tube at 105°C, 70 min;;	A 7% B n/a C n/a
With mercury dichloride byproducts: H2, HCl; in bomb tube at temp. >= 100°C;;

diboron tetrabromide (14355-29-4) → boron trichloride (10294-34-5) + BBrCl2 + Dibromochloroborane

Conditions	Yield
With tetrachloromethane Vac.-distn. of B2Br4 to CCl4, heating in an oil-bath (96°C, 5.75 h).; Monitored by (11)B-NMR.;	A 5.5% B 4.5% C 1.3%

dichloro-methyl-borane (7318-78-7) → boron trichloride (10294-34-5) + hexachloro hexaboraadamantane (54573-10-3)

Conditions	Yield
byproducts: HCl; 450°C, sealed tube; cooling to room temp. over 12 h yields crystals, evapn. of volatile products, boraadamantane is sublimated in vac., elem. anal.;	A n/a B 5%

diboron tetrachloride (13701-67-2) + phosphorus trichloride (7719-12-2, 52843-90-0) → closo-1,7-P2B10Cl10 (244036-47-3) + closo-3,4,5,6-tetrachloro-1,2-diphosphahexaborane(4) (112897-10-6) + closo-1,10-P2B8Cl8 (263152-14-3) + conjuncto-3,3'-(1,2-P2B4Cl3)2 (263152-13-2) + boron trichloride (10294-34-5)

Conditions	Yield
In neat (no solvent) (vac. or inert gas); B2Cl4 and PCl3 condensed in vac., sealed, heated at 400°C for 1 h, allowed to cool over 20 h; vac.-evapd. at 0°C, extd. with BCl3, evapd. at 0°C, fractionated by sublimation in vac.;	A 5% B n/a C n/a D n/a E n/a

ethyl 1,1-dichloroacetate (535-15-9) + molecular compound of dichloroacetic acid ethyl ester with 1 mol boron chloride → dichloroacethyl chloride (79-36-7) + chloroethane (75-00-3) + boron trichloride (10294-34-5)

Conditions	Yield
at 45℃;

butoxy-dichloro-borane (16339-30-3) → dibutoxy-chloro-borane (18379-65-2) + boron trichloride (10294-34-5)

Conditions	Yield
at 20℃; under 14 Torr; Disproportionierung;

dichloro(neopentyloxy)borane (34456-12-7) → bis(neopentyloxy)chloroborane (115001-74-6) + boron trichloride (10294-34-5)

Conditions	Yield
at 20℃; Zersetzung;

(2-chloroethoxy)dichloroborane (16339-31-4) → tris(2-chloroethoxy)borane (22238-19-3) + boron trichloride (10294-34-5)

Conditions	Yield
at 70℃; under 14 Torr;

bis(n-octyloxy)chloroborane (93314-06-8) → tri-n-octyl borate (2467-12-1) + boron trichloride (10294-34-5)

Conditions	Yield
under 0.01 Torr;

(n-octyloxy)dichloroborane (98561-14-9) → 1-Chlorooctane (111-85-3) + tri-n-octyl borate (2467-12-1) + boron trichloride (10294-34-5)

Conditions	Yield
Erwaermen unter vermindertem Druck;

butoxy-dichloro-borane (16339-30-3) → n-Butyl chloride (109-69-3) + boron trichloride (10294-34-5) + boroxide

Conditions	Yield
Disproportionierung bei Normaldruck;

monochlorodiborane (17927-57-0) + boron trichloride (10294-34-5) → dichloroborane (10325-39-0)

Conditions	Yield
in presence of fluid BCl3; 100 % conversion at 20°C in 1 week; more than 60 % B2H5Cl reacts at 30°C in 4 h;	100%
100°C; 20 min.;	>99
100°C; 20 min; BCl3 in excess;	>99

boron trichloride (10294-34-5) + sodium triethylborohydride → diborane (19287-45-7)

Conditions	Yield
ambient temp.;	100%
ambient temp.;	100%

trifluorormethanesulfonic acid (1493-13-6) + boron trichloride (10294-34-5) → tris(trifluoromethanesulfonyloxy)boron (64371-01-3)

Conditions	Yield
at 10 - 20℃; for 4h;	100%
In 1,1,2-Trichloro-1,2,2-trifluoroethane soln. of the components stirred at -78 ° C for 4-6 h; SO2ClF may also be used as solvent instead of Freon-113; soln. warmed to room temp.; white solid obtained after removal of the solvent; prduct purified by distn. (68-73 ° C, 0.5 Torr); elem. anal.;;

nitrogen trichloride (10025-85-1) + boron trichloride (10294-34-5) → hexachlorborazine (19087-72-0)

Conditions	Yield
	100%
	100%

tetrabutylammonium perchlorate (1923-70-2) + boron trichloride (10294-34-5) → tetrabutylammonium trichloroperchloratoborate (54775-46-1)

Conditions	Yield
In chloroform introducing of gaseous BCl3 to soln. of <(C4H9)4N> in CHCl3 at 20°C; distn. and drying in vac.;	100%
In neat (no solvent) Bu4NClO4 reacted slowly with excess of BCl3 at 20°C; elem. anal.;
In chloroform Bu4NClO4 reacted slowly with BCl3 in CHCl3 at 20°C; elem. anal.;
In chloroform

Cp(CO)2Fe(P(O)(OMe)(NEt2)) + boron trichloride (10294-34-5) → (η5-C5H5)Fe(CO)2P(OBCl3)(Cl)(NEt2)

Conditions	Yield
In hexane; dichloromethane (N2); a soln. of BCl3 in hexane added to a soln. of Fe-complex at -78°C; stirred for 1 h at room temp.; evapd.; added CH2Cl2; filtered; evapd.; recrystd. from CH2Cl2/hexane;	100%

[(AlH)6(AlN(CH3)3)2(CCH2CH2Si(CH3)3)6]*2CH3C6H5 + boron trichloride (10294-34-5) → [(AlCl)6(AlN(CH3)3)2(CCH2CH2Si(CH3)3)6]

Conditions	Yield
In hexane; toluene byproducts: B2H6; (N2); using Schlenk techniques; addn. dropwise of soln. BCl3 (2 equiv.) in hexane to soln. of (AlH3)6(AlNMe3)2(CCH2CH2SiMe3)6 (1 equiv.) in toluene at -78°C, stirring for 0.5 h at this temp., stirring for 0.5 h at 0°C and 2 h at room temp.; removal of volatiles in vac. at 30°C, recrystn. from toluene (50°C/4°C), drying in vac., elem. anal.;	100%

nitrido(tetra-tert-butylphthalocyaninato)rhenium(V) (158789-52-7) + boron trichloride (10294-34-5) → ((CH3)3CC8H3NN)4ReNBCl3 (582295-87-2)

Conditions	Yield
In dichloromethane Re compd. dissolved in CH2Cl2 and cooled to -5°C, electrophile added dropwise to this soln., stirred for 6 h at -5°C; solvent removed at -5°C, elem. anal.;	100%

boron trichloride (10294-34-5) + rhenium(VII) oxide → rhenium trichloride dioxide

Conditions	Yield
In neat (no solvent) (Ar); Re2O7 put into glass ampoule; BCl3 condensed onto it at -196°C; warmed slowly to -40°C then to room temp.; slowly cooled to -60°C;	100%

5,5-difluoro-10-(p-tolyl)-5H-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinin-4-ium-5-uide (955084-10-3) + boron trichloride (10294-34-5) → 4,4-dichloro-8-p-tolyl-4-bora-3a,4a-diaza-s-indacene

Conditions	Yield
In dichloromethane for 0.25h; Inert atmosphere; UV-irradiation;	100%

2,2'-biquinoline (119-91-5) + boron trichloride (10294-34-5) → C18H12BCl2N2(1+)*Cl(1-)

Conditions	Yield
In n-heptane; dichloromethane at -78 - 25℃; for 20h; Inert atmosphere;	100%

boron trichloride (10294-34-5) + 4-n-butyl-1-trimethylsilylbenzene (81631-74-5) → 4-n-butylphenyldichloroborane

Conditions	Yield
In dichloromethane at 20℃; Inert atmosphere;	100%

chlorosulfonic acid (7790-94-5) + boron trichloride (10294-34-5) → B(SO3Cl)3

Conditions	Yield
at 6 - 20℃; for 4h;	100%

boron trichloride (10294-34-5) + 3,3',5,5'-tetraphenyl-ms-aza-2,2'-dipyrrolylmethene difluoroborate → 4,4-dichloro-1,3,5,7-tetraphenyl-4-bora-3a,4a,8-triaza-s-indacene

Conditions	Yield
In dichloromethane at 20℃; for 0.333333h; Glovebox; Inert atmosphere; Schlenk technique;	100%

N,N-difluoroboryl-[N-(3-phenyl-2H-isoindol-1-yl)-N-(3-phenyl-1H-isoindol-1-ylidene)amine] (1073151-42-4) + boron trichloride (10294-34-5) → N,N-dichloroboryl-[N-(3-phenyl-2H-isoindol-1-yl)-N-(3-phenyl1H-isoindol-1-ylidene)amine]

Conditions	Yield
In dichloromethane at 20℃; for 0.333333h; Glovebox; Inert atmosphere; Schlenk technique;	100%

C27H24BFN4 + boron trichloride (10294-34-5) → C27H24BClN4

Conditions	Yield
In n-heptane; dichloromethane at 21℃; for 1h; Inert atmosphere;	100%

lithium aluminium tetrahydride (16853-85-3) + boron trichloride (10294-34-5) → diborane (19287-45-7)

Conditions	Yield
In diethyl ether byproducts: LiCl, AlCl3; distn. of BCl3 to water free etheric soln. of LiAlH4, cooled with liq. N2; heating up to room temp.; fractionated condensation;	99.4%
In diethyl ether byproducts: LiCl, AlCl3; distn. of BCl3 to water free etheric soln. of LiAlH4, cooled with liq. N2; heating up to room temp.; fractionated condensation;	99.4%

bis(trifluoromethyl)mercury (371-76-6) + boron trichloride (10294-34-5) → boron trifluoride (7637-07-2)

Conditions	Yield
In neat (no solvent) (N2); BCl3 was condensed above Hg compd. in an evacuated tube, mixt. was warmed up to room temp. with stirring, after 35 min was cooled to 0°C and all volatiles removed in vac.; fractionation at -160°C yielded BF3; identified by (19)F- and (11)B-NMR and mass spect.;	99%

triethyl borane (97-94-9) + boron trichloride (10294-34-5) → diethylchloroborane (5314-83-0)

Conditions	Yield
With ethene; tetraethyldiborane(6) react. of two equiv of B(C2H5)3 with one equiv of BCl3 at room temp., decompn. of catalyst with ethylene; distn.;	99%
With ethylene; tetraethyldiborane(6) react. of two equiv of B(C2H5)3 with one equiv of BCl3 at room temp., decompn. of catalyst with ethylene; distn.;	99%
tetraethyldiborane(6)

tetraethyldiborane(6) (12081-54-8) + tripropylborane (1116-61-6) + boron trichloride (10294-34-5) → dipropylchloroborane (22086-53-9)

Conditions	Yield
With decene-1 introduction of BCl3 in mixt. of B(n-C3H7) and (C2H5)2B2H2 for 15 min, addn. of decene-1; distn.;	99%

(benzyl alcohol)tricarbonylchromium(0) (12116-45-9) + boron trichloride (10294-34-5) → (η6-benzyl chloride)tricarbonylchromium(0) (12170-17-1)

Conditions	Yield
In dichloromethane stirring at -78°C for 1 h, quenching (satd. aq. NaHCO3), warming to room temp.; addn. of H2O, extn. (Et2O), drying (MgSO4), filtration, concn.;	99%

C5H4Si(CH3)3Sn(CH3)3 + boron trichloride (10294-34-5) → ClB(C5H4Si(CH3)3)2

Conditions	Yield
In toluene under N2 atm. to soln. BCl3 in toluene was added C5H4(SiMe3)(SnMe3), react. mixt. was heated to reflux for 5 h; volatiles were removed at 0.1 mm Hg, 50°C;	99%

(C6F5)2(CH3)2C3HN2Si(CH3)3 + boron trichloride (10294-34-5) → (C6F5)2(CH3)2C3HN2BCl2

Conditions	Yield
In hexane; toluene (under Ar, Schlenk); soln. of BCl3 in hexane added to soln. of ligand intoluene at ambient temp., stirred overnight; solvent removed under reduced pressure;	99%

tetrakis(2,6-diisopropylphenylimino)pyracene + boron trichloride (10294-34-5) → [(C14H4(NC6H3(C3H7)2)4)(BCl2)2](2+)*2BCl4(1-)=[(C14H4(NC6H3(C3H7)2)4)(BCl2)2][BCl4]2

Conditions	Yield
In hexane; dichloromethane BCl3 (4 equiv.) and ligand at 25°C for 12 h;	99%

5,5-dimethyl-5H-dibenzo[b,f]stannepine (1189139-25-0) + (2,4,6-triisopropylphenyl)tin(Bu)3 (1237745-13-9) + boron trichloride (10294-34-5) → 5-(2,4,6-tri-iso-propylphenyl)-5H-dibenzo[b,f]borepin (1237745-15-1)

Conditions	Yield
In toluene Schlenk air-free technique; react. of Sn(CH3)2(C2H2(C6H4)2), tripyl-Sn(Bu)3 and BCl3 at -78°C;	99%

boron trichloride (10294-34-5) + borondipyrromethene → 4,4-dichloro-4-bora-3a,4a-diaza-s-indacene (1417726-65-8)

Conditions	Yield
In dichloromethane at 22℃; for 1h; Inert atmosphere;	99%

2,6-diethyl-4,4-difluoro-1,3,5,7-tetramethyl-8H-4-bora-3a,4a-diaza-s-indacene + boron trichloride (10294-34-5) → 4,4-dichloro-2,6-diethyl-1,3,5,7-tetramethyl-8H-4-bora-3a,4a-diaza-s-indacene (1355045-95-2)

Conditions	Yield
In dichloromethane at 22℃; for 1h;	99%
In hexane; dichloromethane for 1h; Inert atmosphere;

1',2',3',4',5'-pentamethylazaferrocene (183619-19-4) + boron trichloride (10294-34-5) → C14H19BCl3FeN (1610052-27-1)

Conditions	Yield
In dichloromethane for 0.5h; Inert atmosphere;	99%

1,3-bis-(2,4,6-trimethylphenyl)-4,6-diketo-5,5-dimethylpyrimidin-2-ylidene (1237706-56-7) + boron trichloride (10294-34-5) → C24H28BCl3N2O2

Conditions	Yield
In hexane; benzene at 20℃; for 1h; Inert atmosphere; Glovebox;	99%

Upstream product

• 535-15-9 ethyl 1,1-dichloroacetate 
• 856311-91-6 Cl₃P*BI₃ 
• 20410-29-1 bis(trichlorosilyl)amino dichloroborane 
• 17927-57-0 monochlorodiborane 
• 7647-01-0 hydrogenchloride 
• 13510-40-2 phosphorus trichloride dibromide 
• 10026-13-8 phosphorus pentachloride 
• 12007-83-9 thorium tetraboride 
• 10325-39-0 dichloroborane 
• 7637-07-2 boron trifluoride 
• 14355-29-4 diboron tetrabromide 
• 54573-10-3 hexachloro hexaboraadamantane 
• 14700-96-0 clorine 
• 7359-98-0 tri-n-butylboroxine 

Downstream Products

• 2720-03-8 bis(pentafluorophenyl)boron chloride 
• 753-73-1 dimethyltin dichloride 
• 78-89-7 2-chloro-1-propanol 
• 127-00-4 1-Chloro-2-propanol 
• 6986-48-7 bis-1-chloroethyl ether 
• 74-87-3 methylene chloride 
• 75088-70-9 (phenyloxy)dichloroborane 
• 4250-45-7 dichloro-p-tolyl-borane 
• 4250-47-9 (3-CH₃-C₆H₄)BCl₂ 
• 21022-98-0 (2,5-dimethylphenyl)dichloroborane 
• 856798-53-3 3,5-(C₆H₃)2BCl₂ 
• 1095-03-0 triphenylborane 
• 75-36-5 acetyl chloride 
• 701-35-9 p-tolyltrichlorosilane 

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