Boron tribromide

Base Information

• Chemical Name: Boron tribromide
• CAS No.: 10294-33-4
• Deprecated CAS: 5967-37-3
• Molecular Formula: BBr3
• Molecular Weight: 250.523
• Hs Code.: 28129090
• European Community (EC) Number: 233-657-9
• ICSC Number: 0230
• UN Number: 2692
• UNII: A453DV9339
• DSSTox Substance ID: DTXSID4065028
• Nikkaji Number: J42.716K
• Wikipedia: Boron tribromide
• Wikidata: Q415804
• Mol file: 10294-33-4.mol

Synonyms:boron tribromide;tribromoborane

Chemical Property of Boron tribromide

Chemical Property:

• Appearance/Colour: clear to amber liquid with a pungent odour
• Vapor Pressure: 40 mm Hg ( 14 °C)
• Melting Point: -46 °C(lit.)
• Refractive Index: 1.549
• Boiling Point: 91.3 °C at 760 mmHg
• Flash Point: 30°F
• PSA: 0.00000
• Density: 2.782 g/cm³
• LogP: 2.15600
• Storage Temp.: Poison room
• Sensitive.: Moisture Sensitive
• Solubility.: Miscible with ethanol and carbon tetrachloride.
• Water Solubility.: Reacts with water.
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 249.76227
• Heavy Atom Count: 4
• Complexity: 8
• Transport DOT Label: Corrosive Poison Inhalation Hazard

Purity/Quality:

99% ^*data from raw suppliers

BoronTribromide(1.0?MinMethyleneChloride) ^*data from reagent suppliers

Safty Information:

• Pictogram(s): T+, C, F, N
• Hazard Codes: T+,C,F,N
• Statements: 14-26/28-35-40-62-11-67-65-50/53-37-51/53-48/20
• Safety Statements: 9-26-28-36/37/39-45-23-33-16-62-61-60

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Toxic Gases & Vapors -> Other Toxic Gases & Vapors
• Canonical SMILES: B(Br)(Br)Br
• Inhalation Risk: A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20 °C.
• Effects of Short Term Exposure: The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema.
• Uses: as the major chemical raw material of the production of caustic soda, soda ash, widely used in alkali industry. As a semiconductor silicon doping source, it can be used for preparation of high purity boron and organic boron compound. Trona is mainly used for making soda ash, caustic soda, soda, and other products. Soda ash is an important industrial raw material, widely used in glass, chemicals, light industry, textile, dyeing, metallurgy, petroleum processing, pharmaceuticals, food and so on. Caustic soda is mainly used for rayon, paper, dyes, soap, plastics, pharmaceuticals, agricultural chemicals and so on. Baking soda is mainly used in food, plastics, rubber, pharmaceutical, printing and dyeing, tanning, soaking seeds and other areas. As a dopant materials of semiconductor, catalyst, intermediate and brominated agent of organic synthesis, It is a raw material for producing high purity boron and other organic boron compound. Used in organic synthesis and preparation for high purity boron. As catalyst, intermediates and Brominating agents for organic synthesis, raw materials for manufacturing high purity boron and other organic boron compound. Boron Tribromide is used as a reagent in the synthesis of 8-hydroxyquinolato compounds used as electron transport materials in EL devices. It is also used in the demethylation of aryl methyl ethers by boron tribromide. manufacture of diborane; ultra high purity boron. Reagent for cleavage of ethers, amines, thiols; addition of allenes and alkynes. Catalyst in manufacture of diborane, ultrahigh-purity boron, and semiconductors
• Production method: Direct synthesis is putting the dried powder of boron into the reaction tube of a tubular reactor, to make the reaction can be carried out sufficiently, a certain amount of filler should be placed in the reaction tube, the filler material is the same as the inner wall of the reaction tube. The reaction tube was heated to 850 ℃, also bromine in the bromine vessel was heated to a boil, then poured into reaction tube. The boron tribromide liquid produced with activated carbon, zinc and aluminum scrap together in debromination vessel heated to reflux until boron bromide produced is a colorless, and then by crude distillation, distillation, obtained completely colorless bromide boron products. 2B + 3Br2 → 2BBr3 Salt Lake alkaline mineral general uses open-pit mining, ancient alkaline mineral general uses underground dissolution mining law. Mining process 1. open-pit mining 2. underground dissolution method

Technology Process of Boron tribromide

There total 73 articles about Boron tribromide which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 80.0%

pentaborane(9) + diboron tetrabromide (14355-29-4) → 1-(dibromoboryl)pentaborane + boron tribromide (10294-33-4) + dibromoborane (13709-65-4)

Guidance literature:

In neat (no solvent); Teflon-valve-equipped standard vacuum line or a nitrogen-filled glovebox;excess B5H9;pentaborane, B2Br4 separately condensed in the reactor, after 20 min at room temp., vessel cooled to -10 ° C,; over course of the following 10 h,all volatile material removed,reactor warmed to room temp.,all volatile material at room temp. were removed,BBr2B5H8 extd. with CH2Cl2, yield:80% on basis of amt. of B2Br4 employed, 86% on basis of unrecovered B5H9;

Reference yield: 70.0%

boron + bromine (7726-95-6) → boron tribromide (10294-33-4)

Guidance literature:

boron is mixed with ca. 9 w % Mg, in H2 atmosphere;

Reference yield: 70.0%

boron trifluoride (7637-07-2) + aluminium bromide (7727-15-3) → boron tribromide (10294-33-4)

Guidance literature:

with excess of BF3; addn. of Al to depress formation of Br2; addn. of Hg to get rid of Br2;

DOI:10.1021/ja01862a078

upstream raw materials:

bromine

1,2,3-tribromopropane

phosphorus trichloride dibromide

pyrographite

Downstream raw materials:

2-hydroxy-4-nitrobenzoic acid

bromodiphenylborane

5-fluoro-2-hydroxyphenyl-boronic acid

1-methyl-6-trifluoromethyl-3-(6-amino-4-chloro-2-fluoro-5-hydroxy-phenyl)-2,4(1H,3H)-pyrimidinedione

Refernces

Synthesis and characterization of silver and palladium complexes with xanthene-based n-heterocyclic carbene-oxazoline ligands

10.1021/om100673e

The study presents the synthesis and characterization of silver and palladium complexes with xanthene-based N-heterocyclic carbene-oxazoline ligands. The researchers synthesized xanthenes with two different donor ligand units, N-heterocyclic carbene (NHC) and oxazoline, and prepared silver complexes 15 and 19 by reacting the xanthene derivatives with Ag2O. They also synthesized palladium complexes 16 and 20 by reacting the corresponding silver complexes with Pd(PhCN)2Cl2. X-ray crystallographic analysis revealed that complexes 15-PF6, 16, and 20 adopted trans configurations, while the Ag atom of 15-Cl coordinated only to the NHC ligand. The study provides insights into the structural analysis of these complexes, which could be significant for the development of catalysts for various reactions, particularly asymmetric synthesis.