125707-12-2

Basic information

• Product Name: (1R,4S)-1,4-Diphenyl-[1,4]diphosphepane
• CAS NO: 125707-12-2
• Molecular Weight: 286.293
• Mol File: 125707-12-2.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: (1R,4S)-1,4-Diphenyl-[1,4]diphosphepane(CAS DataBase Reference)
• NIST Chemistry Reference: (1R,4S)-1,4-Diphenyl-[1,4]diphosphepane(125707-12-2)
• EPA Substance Registry System: (1R,4S)-1,4-Diphenyl-[1,4]diphosphepane(125707-12-2)

Safety Data

• Hazardous Substances Data: 125707-12-2(Hazardous Substances Data)

Upstream product

• 6737-42-4 1,3-bis-(diphenylphosphino)propane 
• 107-06-2 1,2-dichloro-ethane 
• 106-93-4 ethylene dibromide 
• 60778-68-9 1,3-bis(lithiumphenylphosphido)propane 
• 74-86-2 acetylene 
• 109-64-8 1,3-dibromo-propane 
• 1663-45-2 1,2-bis-(diphenylphosphino)ethane 
• 142-28-9 1,3-Dichloropropane 
• 60778-67-8 dilithium salt of 1,2-bis(phenylphosphino)ethane 

Relevant articles and documents

ORGANOPHOSPHORUS INTERMEDIATES XI. PREPARATION AND STEREOCHEMISTRY OF P-PHENYLATED 1,3-DIPHOSPHOLANE, 1,3- AND 1,4-DIPHOSPHORINANES, 1,4-DIPHOSPHEPANE AND 1,5-DIPHOSPHOCANE

The eponymous 5-, 6- and seven-membered diphosphorous heterocycles have been prepared by alkylating diphosphides with α,ω-dihalides and separated into stereoisomers.One isomer of the 1,5-diphosphocane has been obtained by reduction of the dioxide with trichlorosilane.Stereochemistry is assigned on the basis of (1)H, (13)C, (31)P nmr, infrared and mass spectral studies and X-ray structure of the trans-1,4-diphosphorinane.Thermal inversion studies on the 5-, 6- and 7-membered heterocycles are described. Key words: Heterocycles; diphosphines; stereochemistry; nmr; inversion.