59485-34-6

Basic information

• Product Name: o,o'-dibromobibenzyl
• Synonyms: o,o'-dibromobibenzyl;1,1'-(1,2-Ethanediyl)bis(2-bromobenzene);1,1'-Ethylenebis(2-bromobenzene);1,2-BIS(2-BROMOPHENYL)ETHANE
• CAS NO: 59485-34-6
• Molecular Formula: C₁₄H₁₂Br₂
• Molecular Weight: 340.05308
• EINECS: 261-783-4
• Mol File: 59485-34-6.mol
• Article Data: 29

Chemical Properties

• Melting Point: 84.5 °C
• Boiling Point: 150-170 °C(Press: 0.01 Torr)
• Appearance: /
• Density: 1.579±0.06 g/cm3(Predicted)
• CAS DataBase Reference: o,o'-dibromobibenzyl(CAS DataBase Reference)
• NIST Chemistry Reference: o,o'-dibromobibenzyl(59485-34-6)
• EPA Substance Registry System: o,o'-dibromobibenzyl(59485-34-6)

Safety Data

• Hazardous Substances Data: 59485-34-6(Hazardous Substances Data)

Usage

General Description

O,o'-dibromobibenzyl, also known as dibromodiphenylmethane, is a chemical compound with the molecular formula C14H12Br2. It is a white to light brown crystalline solid that is insoluble in water but soluble in organic solvents. O,o'-dibromobibenzyl is commonly used as a flame retardant in the production of plastics, textiles, and construction materials. It acts as a halogenated organic compound that inhibits the spread of flames by releasing bromine atoms when exposed to heat. O,o'-dibromobibenzyl is considered to be potentially harmful if ingested, inhaled, or comes into contact with the skin, and may cause irritation to the respiratory system and skin. Therefore, proper handling and safety precautions are necessary when using this chemical.

Upstream product

• 3433-80-5 1-Bromo-2-bromomethyl-benzene 
• 6630-33-7 ortho-bromobenzaldehyde 
• 36108-49-3 6,11-dihydro-11,11-dimethyl-5H-dibenzo{b,f}stannepin 
• 7726-95-6 bromine 
• 109-72-8 n-butyllithium 
• 128-08-5 N-Bromosuccinimide 
• 36901-75-4 (2-bromobenzyl)triphenylphosphonium bromide 
• 95-46-5 2-methylphenyl bromide 
• 307496-27-1 2-bromobenzylzinc(II) bromide 
• 6833-15-4 4-chlorobenzanilide 
• 1066-35-9 dimethylmonochlorosilane 
• 108474-32-4 (E/Z)-α,α'-dibromostilbene 
• 75580-39-1 bis-<1,2,4,6-tetramethyl-1,4-dihydropyridinyl-(4)> 
• 18698-97-0 ortho-bromophenylacetic acid 

Downstream Products

• 776-35-2 9,10-dihydrophenanthrene 
• 6639-40-3 1,2-bis(2-chlorophenyl)ethane 
• 59506-93-3 10,11-dihydro-5H-dibenzo[b,f]phosphepine 5-oxide 
• 74103-35-8 S,S'-dimethylbibenzyl-2,2'-dithiol 
• 192137-72-7 (C₆H₅)3PAu(C₆H₄)(CH₂)2(C₆H₄)AuP(C₆H₅)3 
• 51523-13-8 1,2-bis[o-(diphenylphosphino)phenyl]ethane 

Relevant articles and documents

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Method for preparing organic carboxylic ester through combined catalysis of aryl bidentate phosphine ligand

The invention discloses a method for preparing organic carboxylic ester by combined catalysis of an aryl bidentate phosphine ligand. The method comprises the following steps: under the action of a palladium compound/aryl bidentate phosphine ligand/acidic additive combined catalyst, carrying out a hydrogen esterification reaction on terminal olefin, carbon monoxide and alcohol so as to generate theorganic carboxylic ester with one more carbon than olefin. According to the invention, by adoption of the palladium compound/aryl bidentate phosphine ligand/acidic additive combined catalyst, good catalytic activity and selectivity for the hydrogen esterification reaction of the olefin are achieved, and olefin carbonylation to synthesize organic carboxylic ester can be efficiently catalyzed. Thearyl bidentate phosphine ligand has a rigid skeleton structure of a rigid ligand and the flexibility of a flexible ligand, so the aryl bidentate phosphine ligand has proper flexibility due to the characteristic that the aryl bidentate phosphine ligand is soft and rigid, and a most favorable coordination mode and a stable active structure in space are favorably formed. In addition, the aryl bidentate phosphine ligand has the advantages of high stability, simple and convenient synthesis method and the like; and a novel industrial technology is provided for production of organic carboxylate compounds.

PHOSPHACYCLE COMPOUND AND PROCESS FOR PRODUCTION THEREOF

The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.