dibromo(o-tolyl)borane

Base Information

• Chemical Name: dibromo(o-tolyl)borane
• CAS No.: 156629-31-1
• Molecular Formula: C₇H₇BBr₂
• Molecular Weight: 261.752
• Mol file: 156629-31-1.mol

Synonyms:dibromo(o-tolyl)borane

Chemical Property of dibromo(o-tolyl)borane

Chemical Property:

Purity/Quality:

Safty Information:

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MSDS Files:

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Technology Process of dibromo(o-tolyl)borane

There total 6 articles about dibromo(o-tolyl)borane 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: 90.0%

(2-methylphenyl)trimethylsilane (7450-03-5) + boron tribromide (10294-33-4) → dibromo(o-tolyl)borane (156629-31-1)

Guidance literature:

In dichloromethane; at 23 ℃; for 12h; Inert atmosphere;

DOI:10.1021/jacs.6b00100

Reference yield: 87.0%

boron tribromide (10294-33-4) + toluene (108-88-3,15644-74-3,16713-13-6) + diborane (19287-45-7) → 3-CH3C6H4BBr2 (76782-89-3) + dibromo(o-tolyl)borane (156629-31-1) + 4-(dibromoboryl)toluene (4151-78-4) + hydrogen (1333-74-0)

Guidance literature:

byproducts: boron hydride; High Pressure; under N2; diborane and trihalogen-borane was added to toluene at -130°C, then in a closed autoclave the mixture was heated to 120°C for 90 min; at -195.8°C H2 was removed, at room temp. the residue of trihalogen-borane and diborane were removed;

Reference yield: 56.0%

boron tribromide (10294-33-4) + o-tolylmercury(II) bromide (20854-07-3) → dibromo(o-tolyl)borane (156629-31-1)

Guidance literature:

In toluene; byproducts: HgBr2; addn. of BBr3 in toluene to a stirred suspn. of arylmercury(II) bromide in toluene under N2, keeping at 90°C for 24 h; cooling to room temp., filtn. to remove HgBr2, removal of solvent under vacuum (room temp./2 mm Hg), distn. of residue in a bulb-to bulb distn. apparatus;

DOI:10.1016/0022-328X(94)80027-8

upstream raw materials:

boron tribromide

toluene

diborane

o-tolylmercury(II) bromide

Downstream raw materials:

2,4,6-tris(2-methylphenyl)-cyclo-1,3,5-trithia-2,4,6-triborinane

3,5-bis(2-methylphenyl)-cyclo-1,2,4-trithia-3,5-diborolane

(S)-3,3-diphenyl-1-(o-tolyl)hexahydropyrrolo[1,2-c]-[1,3,2]oxazaborole