34838-60-3

Basic information

• Product Name: biphenyl-4,4'-bis(2-triphenylphosphoranylideneethanone)
• Synonyms: biphenyl-4,4'-bis(2-triphenylphosphoranylideneethanone)
• CAS NO: 34838-60-3
• Molecular Weight: 758.836
• Mol File: 34838-60-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: biphenyl-4,4'-bis(2-triphenylphosphoranylideneethanone)(CAS DataBase Reference)
• NIST Chemistry Reference: biphenyl-4,4'-bis(2-triphenylphosphoranylideneethanone)(34838-60-3)
• EPA Substance Registry System: biphenyl-4,4'-bis(2-triphenylphosphoranylideneethanone)(34838-60-3)

Safety Data

• Hazardous Substances Data: 34838-60-3(Hazardous Substances Data)

Upstream product

• 92-52-4 biphenyl 
• 1779-49-3 Methyltriphenylphosphonium bromide 
• 2351-37-3 4,4'-biphenyldicarboxylic acid dichloride 
• 4072-67-7 4,4'-bis(bromoacetyl)biphenyl 

Relevant articles and documents

Unexpected Rearrangement Leading to Formation of a 1,3- Bis(triphenylphosphonio)prop-1-en-3-idyl Carboxylate

Whereas biphenyl-4,4′-dicarbonyl dichloride reacts with methylenetriphenylphosphorane to give the expected bis(acylylide) 1, the same reaction of biphenyl-2,2′-dicarbonyl dichloride results in a multistep rearrangement leading to thezwitterionic 2-[1,3-bis(triphenylphosphonio)prop-1- en-3-id2-y1]biphenyl-27prime;-carboxylate 2. X-ray crystal structures of both 1 and 2 are reported.