Methylboron dibromide

Base Information

• Chemical Name: Methylboron dibromide
• CAS No.: 17933-16-3
• Molecular Formula: CH3BBr2
• Molecular Weight: 185.654
• DSSTox Substance ID: DTXSID00170797
• Nikkaji Number: J82.686C
• Wikidata: Q83040814
• Mol file: 17933-16-3.mol

Synonyms:Methylboron dibromide;dibromo(methyl)borane;17933-16-3;CH3BBr2;Methyldibromboran;Borane,dibromomethyl- (7CI,8CI,9CI);SCHEMBL6013557;DTXSID00170797

Chemical Property of Methylboron dibromide

Chemical Property:

• Vapor Pressure: 67.6mmHg at 25°C
• Refractive Index: 1.46
• Boiling Point: 88.9 °C at 760 mmHg
• Flash Point: 7.6 °C
• PSA: 0.00000
• Density: 1.988 g/cm³
• LogP: 1.89420
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 185.86741
• Heavy Atom Count: 4
• Complexity: 13.5

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: B(C)(Br)Br

Technology Process of Methylboron dibromide

There total 7 articles about Methylboron dibromide 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:

3,4,5-trimethyl-1,2,4,3,5-dithiazadiborolidine (57877-88-0) + boron tribromide (10294-33-4) → 3,5-dibromo-4-methyl-1,2,4,3,5-dithiazadiborolidine (83757-73-7) + dibromomethylborane (17933-16-3) + (CH3)2B2BrNS2 (82363-12-0) + borazine (6569-51-3)

Guidance literature:

In benzene-d6; toluene; at 72°C, 805 min;

Reference yield:

trimethyl(allyl)stannane (762-73-2) + boron tribromide (10294-33-4) → 2-propenyldibromoborane (126566-51-6) + Triallylborane (688-61-9,53588-88-8,90721-85-0,151452-33-4,151452-35-6) + dibromomethylborane (17933-16-3) + dimethyltin dibromide (2767-47-7) + trimethyltin bromide (1066-44-0)

Guidance literature:

In chloroform-d1; react. at -10°C; further unidentified product;

DOI:10.1016/S0020-1693(00)83155-2

Reference yield:

trimethyl(allyl)stannane (762-73-2) + boron tribromide (10294-33-4) → 2-propenyldibromoborane (126566-51-6) + dibromomethylborane (17933-16-3) + dihydroxy-methyl-borane (13061-96-6) + dimethyltin dibromide (2767-47-7)

Guidance literature:

In chloroform-d1; react. at 25°C (24 h);

DOI:10.1016/S0020-1693(00)83155-2

upstream raw materials:

trimethyl(allyl)stannane

boron tribromide

(CO)5Cr(P(C₆H₅)2Sn(CH₃)3)

W(CO)5(P(C₆H₅)2(Sn(CH₃)3))

Downstream raw materials:

1,3-diethyl-2-methyl-1,3,2-diazaboracyclopentane

lithium bromide

1,2,3-trimethyl-[1,3,2]diazaborolidine

CH₃B(SC₆H₅)2

Refernces