18869-04-0

Basic information

• Product Name: meso-1,2-Diphenyl-1,2-dibromodiphosphane
• CAS NO: 18869-04-0
• Molecular Weight: 375.967
• Mol File: 18869-04-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: meso-1,2-Diphenyl-1,2-dibromodiphosphane(CAS DataBase Reference)
• NIST Chemistry Reference: meso-1,2-Diphenyl-1,2-dibromodiphosphane(18869-04-0)
• EPA Substance Registry System: meso-1,2-Diphenyl-1,2-dibromodiphosphane(18869-04-0)

Safety Data

• Hazardous Substances Data: 18869-04-0(Hazardous Substances Data)

Upstream product

• 1073-47-8 phenyldibromophosphine 
• 18869-04-0 rac-1,2-Diphenyl-1,2-dibromodiphosphane 

Downstream Products

• 18869-04-0 meso-1,2-Diphenyl-1,2-dibromodiphosphane 
• 1073-47-8 phenyldibromophosphine 
• 3376-52-1 pentaphenylcyclopentaphosphane 
• 75789-41-2 C₆H₅PBr₂Cr(CO)5 
• 88478-91-5 (CO)5CrPBrC₆H₅PBr(C₆H₅)Cr(CO)5 
• 30377-89-0 Bis(N-methyl-phenylamino)phenylphosphan 
• 603-35-0 triphenylphosphine 
• 1101-41-3 Tetraphenyldiphosphin 
• 6231-02-3 phenylthiophosphoryldibromide 
• 1486-35-7 Tris-(phenyl-phosphin-sulfid) 
• 1779-48-2 phenylphosphinic acid 
• 6002-62-6 1,2-Dibutyl-1,2-diphenyldiphosphan 
• 6372-44-7 (dibutyl)(phenyl)phosphine 
• 2946-61-4 phenylphosphonous acid dimethyl ester 

Relevant articles and documents

On Organophosphorus Compounds, XXII. 1,2-Diaryl-1,2-dibromodiphosphanes

1,2-Diaryl-1,2-dibromodiphosphanes R(Br)P-P(Br)R 2 (R = C6H5; 4-XC6H4, X = CH3O, F, Cl) were prepared by dehalogenation of RPBr2 with magnesium in a one-batch procedure.While solid 2 presumably consists of only one diastereomer there exists an equilibrium between meso-2, rac-2 and their disproportionation products RPBr2 and (RP)5 in solutions of 2.The influence of temperature, R and solvent on this equilibrium was investigated. - The reaction products of the dissolved phenyl compound 2a correspond to a reaction of its disproportionation products PhPBr2 and (PhP)5, the former preferably reacting on nucleophilic substitution, the latter with electrophilic agents.Under heterogenous conditions diphosphanes Ph(R)P-P(R)Ph can be obtained from 2a and LiR.