71075-23-5

Basic information

• Product Name: (1β,4β)-5α,6β-Bis(diphenylphosphinyl)bicyclo[2.2.1]hepta-2-ene
• Synonyms: (+)-Norphos P,P'-dioxide;(1β,4β)-5α,6β-Bis(diphenylphosphinyl)bicyclo[2.2.1]hepta-2-ene;[[1R,4S,(+)]-Bicyclo[2.2.1]hept-5-ene-2α,3β-diyl]bis(diphenylphosphine oxide);[[1R,4S,(+)]-Bicyclo[2.2.1]hepta-5-ene-2α,3β-diyl]bis(diphenylphosphine oxide);[1R,2S,3S,4S,(+)]-2α,3β-Bis(diphenylphosphinyl)bicyclo[2.2.1]hept-5-ene;[1R,2S,3S,4S,(+)]-2α,3β-Bis(diphenylphosphinyl)bicyclo[2.2.1]hepta-5-ene
• CAS NO: 71075-23-5
• Molecular Formula: C₃₁H₂₈O₂P₂
• Molecular Weight: 494.500342
• Mol File: 71075-23-5.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 613.6±55.0 °C(Predicted)
• Appearance: /
• Density: 1.26±0.1 g/cm3(Predicted)
• CAS DataBase Reference: (1β,4β)-5α,6β-Bis(diphenylphosphinyl)bicyclo[2.2.1]hepta-2-ene(CAS DataBase Reference)
• NIST Chemistry Reference: (1β,4β)-5α,6β-Bis(diphenylphosphinyl)bicyclo[2.2.1]hepta-2-ene(71075-23-5)
• EPA Substance Registry System: (1β,4β)-5α,6β-Bis(diphenylphosphinyl)bicyclo[2.2.1]hepta-2-ene(71075-23-5)

Safety Data

• Hazardous Substances Data: 71075-23-5(Hazardous Substances Data)

Upstream product

• 51138-97-7 bicyclo(2.2.1)hept-5-ene-2,3-diyl-bis(diphenylphosphine oxide) 
• 40612-18-8 (E)-1,2-bis(diphenylphosphoryl)ethene 
• 542-92-7 cyclopenta-1,3-diene 

Downstream Products

• 71042-54-1 (2S,3S)-(+)-bis(diphenylphosphanyl)bicyclo[2.2.1]hept-5-ene 
• 71075-24-6 (1R,2R,3R,4S)-bicyclo[2.2.1]hept-5-ene-2,3-diylbis(diphenylphosphane)dioxide 
• 144090-01-7 (1S,2R,4R,5R,6R)-5,6-Bis-diphenylphosphanyl-bicyclo[2.2.1]heptan-2-ol 
• 144090-02-8 (1R,4S,5S,6S)-5,6-Bis-(diphenyl-phosphinoyl)-bicyclo[2.2.1]heptan-2-one 

Relevant articles and documents

Synthesis of (R,R)- and (S,S)-Norphos

Oxidation of (E)-1,2-bis(diphenylphosphanyl)ethene with hydrogen peroxide gave (E)-1,2-bis(diphenylphosphoryl)ethene. Diels-Alder reaction of (E)-1,2-bis(diphenylphosphoryl)ethene with cyclopentadiene yielded 2,3-bis(diphenylphosphoryl)bicyclo[2.2.1]hept-5-ene (NorphosO). rac-NorphosO was resolved with O,O-dibenzoyltartaric acid. (R,R)- and (S,S)-NorphosO were reduced with trichlorosilane to give 2,3-bis(diphenylphosphanyl)bicyclo[2.2.1] hept-5-ene [(R,R)- and (S,S)-Norphos]. Georg Thieme Verlag Stuttgart.