563-43-9

Basic information

• Product Name: ETHYLALUMINUM DICHLORIDE
• Synonyms: Aluminiumethyldichloride;Aluminum,dichloroethyl-;Dichloro(ethyl)aluminium;dichloroethyl-aluminu;Dichloromonoethylaluminum;ethylaluminumdichloridesolution;ETHYLALUMINUM DICHLORIDE;ETHYLALUMINIUM DICHLORIDE
• CAS NO: 563-43-9
• Molecular Formula: C₂H₅AlCl₂
• Molecular Weight: 126.95
• EINECS: 209-248-6
• Product Categories: Organometallics;Al (Alminum) Compounds;Catalysts for Organic Synthesis;Classes of Metal Compounds;Homogeneous Catalysts;Synthetic Organic Chemistry;Titanium Alkoxides, etc. (Homogeneous Catalysts);Typical Metal Compounds;Chemical Synthesis;Organoaluminum;Organometallic Reagents
• Mol File: 563-43-9.mol
• Article Data: 6

Chemical Properties

• Melting Point: 32 °C(lit.)
• Boiling Point: 68-70°C
• Flash Point: 40 °F
• Appearance: Colorless to pale yellow/Liquid
• Density: 0.927 g/mL at 25 °C
• Vapor Pressure: 5 mm Hg ( 60 °C)
• Storage Temp.: 0-6°C
• Water Solubility: Soluble in acetone. Miscible with alcohol, chloroform, ether. Reacts with water.
• Sensitive: Air & Moisture Sensitive
• Merck: 326
• BRN: 4123357
• CAS DataBase Reference: ETHYLALUMINUM DICHLORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: ETHYLALUMINUM DICHLORIDE(563-43-9)
• EPA Substance Registry System: ETHYLALUMINUM DICHLORIDE(563-43-9)

Safety Data

• Hazard Codes: F,T,N,C
• Statements: 11-15-23/24/25-34-14-67-65-62-51/53-48/20-14/15-17-63
• Safety Statements: 16-26-36/37/39-45-62-61-43-27
• RIDADR: UN 3399 4.3/PG 1
• WGK Germany: 1
• RTECS: BD0705000
• F: 10-21
• TSCA: Yes
• HazardClass: 4.3
• PackingGroup: I
• Hazardous Substances Data: 563-43-9(Hazardous Substances Data)

Usage

Chemical Properties

Different sources of media describe the Chemical Properties of 563-43-9 differently. You can refer to the following data:
1. Clear colorless to yellow solution
2. The aluminum alkyl halides are flammable, reactive, and may be spontaneously combustible in air. They are colorless to yellow liquids. Ethylaluminum dichloride:(563-43-9):

Uses

Ethylaluminum dichloride is used as a catalyst component in the polyolefin industry, for the synthesis of synthetic rubbers and for the dimerisation of olefins. It is also employed as a catalyst for Friedel-Crafts acylations.

General Description

A colorless to light-yellow heated liquid. Freezing point 90°F.

Air & Water Reactions

Highly flammable. Ignites when exposed to air. Reacts violently with water or moisture in air forming hydrogen chloride fumes and flammable ethane gas (Rose 1961).

Reactivity Profile

Organometallics, such as ETHYLALUMINUM DICHLORIDE, are reactive with many other groups. Incompatible with acids and bases. Organometallics are good reducing agents and therefore incompatible with oxidizing agents. Often reactive with water to generate toxic or flammable gases. Organometallics containing halogens (fluorine, chlorine, bromine, iodine) bonded to the metal typically with generate gaseous hydrohalic acids (HF, HCl, HBr, HI) with water.

Hazard

Ignites on contact with air, dangerous fire risk, reacts violently with water. Skin irritant.

Health Hazard

Inhalation of smoke from fire causes metal-fume fever (flu-like symptoms); acid fumes irritate nose and throat. Contact with liquid (which is spontaneously flammable) causes severe burns of eyes and skin.

Potential Exposure

These materials are used as components of olefin polymerization catalysts. The reader is referred to the entry on “Aluminum alkyls” for additional information on this entry. The aluminum alkyl halides parallel very closely the aluminum alkyls

Shipping

UN3052 Spontaneously combustible. Water reactive releasing large quantities of toxic and deadly hydrogen gas. (Note: this number does not appear in the 49/CFR HazMat tables)

Incompatibilities

The aluminum alkyl halides are strong reducing agents; they react—possibly violently—with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. These chemicals react violently with nitromethaneEthylaluminum sesquichloride reacts explosively with carbon tetrachloride at room temperature. This chemical reacts violently with water, forming corrosive hydrogen chloride and flammable ethane gas. Diethylaluminum chloride may form an explosive product with chlorine azide.

InChI:InChI=1/C2H5.Al.2ClH/c1-2;;;/h1H2,2H3;;2*1H/q;+2;;/p-2/rC2H5AlCl2/c1-2-3(4)5/h2H2,1H3

Synthetic route

chloroethane (75-00-3) → ethylaluminum dichloride (563-43-9)

Conditions	Yield
With aluminium und anschliessend mit AlCl3;
With aluminium trichloride; aluminium

diethyl aluminium chloride + AlCl3 → ethylaluminum dichloride (563-43-9)

Conditions	Yield
at 180 - 190℃;

chloroethane (75-00-3) + aluminium → ethylaluminum dichloride (563-43-9) + diethyl aluminium chloride

Conditions	Yield
With iodine bei Ausschluss von Feuchtigkeit und Sauerstoff;
With aluminium trichloride bei Ausschluss von Feuchtigkeit und Sauerstoff;

chloroethane (75-00-3) + copper containing aluminium → ethylaluminum dichloride (563-43-9) + diethyl aluminium chloride

Conditions	Yield
With iodine bei Ausschluss von Feuchtigkeit und Sauerstoff;
With aluminium trichloride bei Ausschluss von Feuchtigkeit und Sauerstoff;

gem-1,1-bis(dichloroalumino)ethane (95465-40-0) + ethene (74-85-1) + aluminium (7429-90-5) → ethylaluminum dichloride (563-43-9) + diethylaluminium chloride (96-10-6)

Conditions	Yield
In n-heptane byproducts: (CH2CHCHCH2CH(CH3))x; High Pressure; (Ar); to a soln. of Al-compound and Al added ethylene (20 bar pressure) under stirring at 100-150°C for 16 h; distd. in vacuo at 50°C; elem. anal.;

gem-1,1-bis(dichloroalumino)ethane (95465-40-0) + ethene (74-85-1) → ethylaluminum dichloride (563-43-9)

Conditions	Yield
In n-heptane byproducts: (CH2CHCHCH2CH(CH3))x; High Pressure; (Ar); to a soln. of Al-compound added ethylene (20 bar pressure) under stirring at 100°C for 24 h; distd. in vacuo at 50°C; elem. anal.;

aluminium trichloride (7446-70-0) + triisobutylaluminum (100-99-2) → ethylaluminum dichloride (563-43-9) + diisobutylaluminum chloride (1779-25-5)

Conditions	Yield
In diethyl ether; toluene all manipulations under dry, O2 free N2 atm.; AlCl3 dissolved in Et2O, soln. of iso-Bu3Al in toluene added at -78°C, allowed to warm to room temp., stirred and refluxed for for 3, stirred at room temp. for 48 h h;

bis(tetrachloroaluminato)(η(6)-benzene)titanium(II) + diethylaluminium chloride (96-10-6) → (η6-benzene)Ti(AlCl4)(AlCl3Et) + ethylaluminum dichloride (563-43-9)

Conditions	Yield
In benzene Addn. of Et2AlCl to benzene soln. of Ti-compd. at 50°C.; Electronic absorption spectroscopy.;

hydrogenchloride (7647-01-0) + diethylaluminium chloride (96-10-6) → ethylaluminum dichloride (563-43-9)

Conditions	Yield
In toluene byproducts: C2H6; (Ar); using Schlenk techniques; addn. of HCl saturated toluene to react. mixt. with Et2AlCl;

(η6-benzene)titanium(II)(AlCl2Et2)(AlCl3Et) → titanium chloride + ethylaluminum dichloride (563-43-9) + diethylaluminium chloride (96-10-6)

Conditions	Yield
In benzene Decompn. of Ti-compd.; Slow pptn. of TiCl2 from the soln. on a time scale of days-to-months obsd. by elecronic absorption spectroscopy.;

bis(tetrachloroaluminato)(η(6)-benzene)titanium(II) + triethylaluminum (97-93-8) → (η6-benzene)Ti(AlCl4)(AlCl3Et) + ethylaluminum dichloride (563-43-9)

Conditions	Yield
In benzene Addn. of Et3Al to benzene soln. of Ti-compd. at 50°C.; Electronic absorption spectroscopy.;

triethylaluminum (97-93-8) + trityl chloride (76-83-5) → ethylaluminum dichloride (563-43-9)

Conditions	Yield
In toluene Kinetics; 25°C; UV/VIS monitoring;

gem-1,1-bis(dichloroalumino)ethane (95465-40-0) → aluminium trichloride (7446-70-0) + ethylaluminum dichloride (563-43-9)

Conditions	Yield
With HCl In methyl cyclohexane byproducts: ethane; passing of dry HCl into stirred soln. of Al-compnd. (1 h); solvent removal, anal.;

1-(chloroethylaluminum)-2-(dichloroaluminum)ethane (98351-23-6) + ethene (74-85-1) → ethylaluminum dichloride (563-43-9)

Conditions	Yield
In further solvent(s) (Ar); ethylene bubbled through a soln. of Al-compound in a mixture of hydrocarbons (C10-C14) at 150°C for 48 h; distd.; elem. anal.;

1-(chloroethylaluminum)-2-(dichloroaluminum)ethane (98351-23-6) → AlCl2CH2CH2Al(Cl)C2H4Al(Cl)C2H5 (98351-24-7) + ethylaluminum dichloride (563-43-9) + diethylaluminium chloride (96-10-6)

Conditions	Yield
heated to 100°C;

gallium(III) trichloride + diethylaluminium chloride (96-10-6) → ethylaluminum dichloride (563-43-9) + ethylgallium dichloride (6917-79-9)

Conditions	Yield
Heating;	A 50 %Spectr. B 50 %Spectr.

gallium(III) trichloride + triethylaluminum (97-93-8) → ethylaluminum dichloride (563-43-9) + ethylgallium dichloride (6917-79-9)

Conditions	Yield
Heating;	A 33 %Spectr. B 66 %Spectr.

bis(cyclopentadienyl)titanium dichloride (1271-19-8) + ethylaluminum dichloride (563-43-9) → Cp2Ti(AlCl4)

Conditions	Yield
In benzene at 25°C, after 4 days were warmed to 70°C for 20h; evapn.;	100%

dichlorobis(η5-methylcyclopentadienyl)titanium(IV) (1282-40-2) + ethylaluminum dichloride (563-43-9) → (MeCp)2Ti(AlCl4)

Conditions	Yield
In benzene react. at room temp. for 4 days, warmed to 70°C for 20h; evapn.;	100%

(η6-benzene)titanium(II)(Al2Cl8) + 1,2,3,4,5-pentamethylcyclopentadiene (4045-44-7) + ethylaluminum dichloride (563-43-9) → (pentamethylcyclopentadiene)titanium(Al2Cl5.9(C2H5)2.1)

Conditions	Yield
With triphenylphosphine In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of Al-compd. and phosphine (molar ratio of Ti/Al/PPh3 = 1/2/2); monitored by ESR;	100%
With triphenylphosphine In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of Al-compd. and phosphine (molar ratio of Ti/Al/PPh3 = 1/3/2); monitored by ESR;	100%

(η6-benzene)titanium(II)(Al2Cl8) + 1,2,3,4,5-pentamethylcyclopentadiene (4045-44-7) + ethylaluminum dichloride (563-43-9) → (pentamethylcyclopentadiene)titanium(Al2Cl6.1(C2H5)1.9)

Conditions	Yield
With triphenylphosphine In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of Al-compd. (molar ratio of Ti/Al/PPh3 = 1/4/4); monitored by ESR;	100%

methanol (67-56-1) + ethylaluminum dichloride (563-43-9) + succinoyl dichloride (543-20-4) → methyl 4-oxohexanoate (2955-62-6)

Conditions	Yield
In dichloromethane at -40℃; for 3.5h;	99%
Stage #1: ethylaluminum dichloride; succinoyl dichloride In dichloromethane at -40℃; for 3.5h; Stage #2: methanol In dichloromethane at -40℃;	99%

ethylaluminum dichloride (563-43-9) + (1Z,1'Z)-N',N''-(1,3-phenylenebis(methylene))bis(N-(2,6-diisopropyl-phenyl)- 2,2-dimethylpropanimidamide) → C42H60Al2Cl4N4

Conditions	Yield
In toluene at 100℃; for 16h; Schlenk technique; Inert atmosphere;	98%

Tris(trimethylsilyl)phosphane (15573-38-3) + ethylaluminum dichloride (563-43-9) → C2H5Cl2AlP(Si(CH3)3)3

Conditions	Yield
In pentane Ar-atmosphere; addn. of equimolar amt. of EtAlCl2 in pentane to P(SiMe3)3 in pentane; stirring (room temp., 24 h); decantation, evapn. of residual solvent from the solid; elem. anal.;	97.6%

ethylaluminum dichloride (563-43-9) + diethylaluminium chloride (96-10-6) + barium(II) chloride → BaCl2*3C2H5AlCl2

Conditions	Yield
In neat (no solvent) anhyd. BaCl2 and C2H5AlCl2 heated at 50°C for 5 h with stirring,soln. cooled to 0°C, (C2H5)2AlCl added under N2 atm.; mixt. cooled to 0°C, n-heptane added, ppt. filtered off, washed with n-hexane and dried in vacuo; elem. anal.;	97%

ethylaluminum dichloride (563-43-9) + calcium chloride → CaCl2*2C2H5AlCl2

Conditions	Yield
In neat (no solvent) anhyd. CaCl2 added to C2H5AlCl2 and mixt. heated with stirring at 110°C for 5 h under N2 atm.; soln. cooled to room temp., n-heptane added, ppt. filtered off, washed with n-hexane and dried in vacuo; elem. anal.;	96.7%

N-{4-[(2,6-diisopropylphenyl)imino]pent-2-en-2-yl}pyridin-2-amine + ethylaluminum dichloride (563-43-9) → Al(N-{4-[(2,6-diisopropylphenyl)imino]pent-2-en-2-yl}pyridin-2-amino)Cl2

Conditions	Yield
In tetrahydrofuran; dichloromethane at -35 - 20℃; Inert atmosphere; Glovebox;	96%

ethylaluminum dichloride (563-43-9) + calcium chloride → CaCl2*4C2H5AlCl2

Conditions	Yield
In neat (no solvent) anhyd. CaCl2 added to C2H5AlCl2 and mixt. heated with stirring at 110°C for 5 h under N2 atm.; soln. cooled to -10°C, n-heptane added, ppt. filtered off, washed with n-hexane and dried in vacuo; elem. anal.;	95.8%

ethylaluminum dichloride (563-43-9) + diethylaluminium chloride (96-10-6) + strontium chloride → SrCl2*3C2H5AlCl2

Conditions	Yield
In neat (no solvent) anhyd. SrCl2 and C2H5AlCl2 heated at 100°C for 18 h with stirring, (C2H5)2AlCl added to soln. under N2 atm.; mixt. cooled to 0°C, n-heptane added, ppt. filtered off, washed with n-hexane and dried in vacuo; elem. anal.;	95.7%

allyl 2-(4-methoxyphenylimino)-2-(4-methoxyphenyl)acetate (1367074-92-7) + ethylaluminum dichloride (563-43-9) + diethylaluminium chloride (96-10-6) → 4-methoxy-N-ethylaniline (104-48-3)

Conditions	Yield
Stage #1: allyl 2-(4-methoxyphenylimino)-2-(4-methoxyphenyl)acetate; ethylaluminum dichloride; diethylaluminium chloride In 1,2-dimethoxyethane; hexane at 40℃; Inert atmosphere; Stage #2: With water; Rochelle's salt In 1,2-dimethoxyethane; hexane at 20℃; for 0.5h;	95%

ethylaluminum dichloride (563-43-9) + N-phenyl-S-(4-methylphenyl)sulfoximidoyl chloride (123552-85-2) → S-ethyl-S-(4-methylphenyl)-N-phenylsulfoximine (123552-91-0)

Conditions	Yield
In dichloromethane at -78℃; for 1h;	94%

(CH2CH(CH2)2CHMeCH2)Ti(η5-C5H5)2Cl + ethylaluminum dichloride (563-43-9) → (CH2(CHCH2CHMe(CH2)2-cyclic))Ti(η5-C5H5)2Cl

Conditions	Yield
In toluene inert atmosphere; cooling soln. of Ti-compd. in toluene (-78°C)addn. of AlCl2Et in toluene, stirring (-78°C, 30 min); not isolated, quenched with HCl isolation of org. compds.;	94%

1-tert-butoxy-2-propanol (57018-52-7) + ethylaluminum dichloride (563-43-9) → [Cl2Al(OCH(CH3)CH2OC(CH3)3)]2 (463966-50-9)

Conditions	Yield
In hexane (Ar); addn. of a soln. of alcohol in hexane to a soln. of aluminium compd. in hexane at 0°C; evapn., drying in vac., recrystn. (hexane); elem. anal.;	94%

(CH2CHCH2CHMe(CH2)2)Ti(η5-C5H5)2Cl + ethylaluminum dichloride (563-43-9) → (CH2(CHCH2CHMe(CH2)2-cyclic))Ti(η5-C5H5)2Cl

Conditions	Yield
In toluene inert atmosphere; cooling soln. of Ti-compd. in toluene (-78°C)addn. of AlCl2Et in toluene, stirring (-78°C, 30 min); not isolated, quenched with HCl isolation of org. compds.;	93%

(CH2CHCHMe(CH2)3)Ti(η5-C5H5)2Cl + ethylaluminum dichloride (563-43-9) → (CH2(CHCHMe(CH2)3-cyclic))Ti(η5-C5H5)2Cl

Conditions	Yield
In toluene byproducts: 1,2-dimethylcyclopentane; inert atmosphere; cooling soln. of Ti-compd. in toluene (-78°C)addn. of AlCl2Et in toluene, stirring (-78°C, 30 min); not isolated, quenched with HCl isolation of org. compds.;	93%

dipotassium pentacarbonylchromate + N,N,N,N,-tetramethylethylenediamine (110-18-9) + ethylaluminum dichloride (563-43-9) → (CO)5CrAl[(CH2CH3)(N(CH3)2CH2)2]

Conditions	Yield
In tetrahydrofuran byproducts: KCl; (N2 or Ar); pptn. of carbonyl dianion in situ, cooling (-78°C), addn. of CH3CH2AlCl2 (-78°C), warming (room temp.), stirring (1 h), addn. of Lewis base ligand, stirring (30 min, 25°C); solvent removing (vac.), extn. (CH2Cl2), graphite sedimentation, filtn. (cannula), concn., storing (-30°C), decantation, concn.;	92%
In tetrahydrofuran; dichloromethane byproducts: KCl; molar ratio Cr complex:AlCl2R:TMEDA 2:2:1, cooling (-78°C), stirring (3 h, 25°C); solvent exchange, filtn., concn., crystn. (-30°C);	90%

dipotassium pentacarbonyltungstate(-II) + N,N,N,N,-tetramethylethylenediamine (110-18-9) + ethylaluminum dichloride (563-43-9) → (CO)5WAl[(CH2CH3)(N(CH3)2CH2)2]

Conditions	Yield
In tetrahydrofuran byproducts: KCl; (N2 or Ar); pptn. of carbonyl dianion in situ, cooling (-78°C), addn. of CH3CH2AlCl2 (-78°C), warming (room temp.), stirring (1 h), addn. of Lewis base ligand, stirring (30 min, 25°C); solvent removing (vac.), extn. (CH2Cl2), graphite sedimentation, filtn. (cannula), concn., storing (-30°C), decantation, concn.;	92%

dipotassium pentacarbonylmolybdate(-II) + N,N,N,N,-tetramethylethylenediamine (110-18-9) + ethylaluminum dichloride (563-43-9) → (CO)5MoAl[(CH2CH3)(N(CH3)2CH2)2]

Conditions	Yield
In tetrahydrofuran byproducts: KCl; (N2 or Ar); pptn. of carbonyl dianion in situ, cooling (-78°C), addn. of CH3CH2AlCl2 (-78°C), warming (room temp.), stirring (1 h), addn. of Lewis base ligand, stirring (30 min, 25°C); solvent removing (vac.), extn. (CH2Cl2), graphite sedimentation, filtn. (cannula), concn., storing (-30°C), decantation, concn.;	92%

ethylaluminum dichloride (563-43-9) + 3,6-endomethylene-1,2,3,6-tetrahydrophthalic anhydride (129-64-6) → (+/-)-(2,3-endo)-3-(1-oxopropyl)bicyclo<2.2.1>hept-5-ene-2-carboxylic acid (100058-98-8, 106924-58-7, 113352-73-1, 113429-13-3, 113429-14-4)

Conditions	Yield
In hexane; dichloromethane at -10℃; for 1h;	91%

solfit (56539-66-3) + ethylaluminum dichloride (563-43-9) → [Cl2Al(OCH2CH2C(CH3)2OCH3)]2 (463966-53-2)

Conditions	Yield
In hexane (Ar); slow addn. of a soln. of alcohol in hexane to a soln. of aluminiumcompd. in hexane at 0°C, stirring for 0.5 h, slow warming to roo m temp.; evapn., drying in vac. crystn. (toluene, 5°C, 3 d); elem. anal.;	91%

(η6-benzene)titanium(II)(Al2Cl8) + 1,2,3,4,5-pentamethylcyclopentadiene (4045-44-7) + ethylaluminum dichloride (563-43-9) → (pentamethylcyclopentadiene)titanium(Al2Cl4.3(C2H5)3.7)

Conditions	Yield
With triphenylphosphine In benzene mixing of Ti-compd. in benzene with cyclopentadiene, then addn. of Al-compd. and phosphine (molar ratio of Ti/Al/PPh3 = 1/5/5); monitored by ESR;	90%

cobaltocenium chloride + ethylaluminum dichloride (563-43-9) → {(C5H5)2Co}(1+)*{(C2H5)AlCl3}(1-)={(C5H5)2Co}{(C2H5)AlCl3}

Conditions	Yield
In diethyl ether dropping of ethereal soln. of Al compd. into suspn. of Co complex at 20°C; elem. anal.;	90%

ethylaluminum dichloride (563-43-9) + (valeryloxy)quinoline (27037-38-3) → heptan-3-one (106-35-4)

Conditions	Yield
In dichloromethane added at -70 deg C, then 7-13 h at room temperature;	89%

ethylaluminum dichloride (563-43-9) + 8-heptanoyloxyquinoline (74010-58-5) → 3-nonanone (925-78-0)

Conditions	Yield
In dichloromethane -70 deg C, then 20 deg C, 8 h;	88%
In dichloromethane added at -70 deg C, then 7-13 h at room temperature;	88%

ethylaluminum dichloride (563-43-9) + (E)-But-2-enoic acid quinolin-8-yl ester → E-4-hexen-3-one (50396-96-8, 130981-55-4, 2497-21-4, 50396-87-7)

Conditions	Yield
In dichloromethane added at -70 deg C, then 7-13 h at at room temperature. AlCl3 can be added as well.;	87%

ethylaluminum dichloride (563-43-9) + Cyclohex-3-enecarboxylic acid quinolin-8-yl ester → 1-cyclohex-3-enyl-propan-1-one (14886-88-5)

Conditions	Yield
In dichloromethane added at -70 deg C, then 7-13 h at at room temperature.;	87%

ethylaluminum dichloride (563-43-9) + (S)-3-butyl-2-methanesulfonyloxy-3-heptanol (93827-09-9) → (S)-6-methyl-5-decanone (93827-10-2)

Conditions	Yield
In hexane; dichloromethane	87%

Upstream product

• 95465-40-0 gem-1,1-bis(dichloroalumino)ethane 
• 74-85-1 ethene 
• 7429-90-5 aluminium 
• 7446-70-0 aluminium trichloride 
• 100-99-2 triisobutylaluminum 
• 96-10-6 diethylaluminium chloride 
• 7647-01-0 hydrogenchloride 
• 97-93-8 triethylaluminum 
• 98351-23-6 1-(chloroethylaluminum)-2-(dichloroaluminum)ethane 
• 76-83-5 trityl chloride 
• 75-00-3 chloroethane 

Downstream Products

• 78-93-3 butanone 
• 74-84-0 ethane 
• 74-85-1 ethene 
• 519-73-3 triphenylmethane 
• 54889-83-7 1,1,1-triphenylpropane 
• 65824-98-8 2,3,5-Trichlor-6-aethyl-1,4-benzochinon 
• 65824-97-7 2,3,5-Trichlor-6-aethylhydrochinon 
• 65824-96-6 4-ethoxytetrachlorophenol 
• 65824-99-9 4-Aethyl-4-hydroxy-2,3,5,6-tetrachlor-2,5-cyclohexadien-1-on 
• 89748-17-4 4-ethoxy-2,5-dichloro-phenol 
• 96-10-6 diethylaluminium chloride 
• 199800-29-8 2-(p-tolyl)-1-ethyl-alumacyclopropane 
• 733743-03-8 ((p-tolyl)CH₂CH₂)2Al(ethyl) 
• 107-27-7 ethylmercury(II) chloride 

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N,N-Dimethylnaphthylamin (1) reacts with Butyllithium to give Li(Et 2O)C10H6NMe2-8 (2). The reaction of 2 with Et2AlCl and EtAlCl2 yields Et2AlC 10H6NMesub

Titanium-catalyzed cyclotrimerization of butadiene. Part II. The (C6H6)TiII(AlCl4)2-EtxAlCl3-x (x=1-3) systems

This paper describes the kinetics of butadiene cyclotrimerization catalyzed by the Ia-EtAlCl2, Et2AlCl or Et3Al systems and the results of investigations of these systems by electronic absorption spectroscopy. The study was carried out to improve understanding of the effects of organo-aluminum compounds on the catalytic properties of Ia and to find the optimum conditions for (Z,E,E)-CDT production. In view of our long-term efforts to identify the catalytic species in the butadiene cyclotrimerization in systems based on different titanium precursors, this is the initial step in a comparative study of the (arene)titanium (II) systems and the Ti(IV)-based systems.