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(2R,3R)-(-)-2,3-Bis(diphenylphosphino)bicyclo[2.2.1]hept-5-ene, also known as (-)-BDPP-BIAN, is a chiral phosphine ligand used in asymmetric catalysis. It features a bicyclo[2.2.1]hept-5-ene backbone with two diphenylphosphino groups attached to the 2 and 3 positions, respectively. This ligand is known for its high enantioselectivity and stability in various catalytic reactions, particularly in the formation of carbon-carbon bonds. Its unique structure and electronic properties make it a valuable tool in the synthesis of complex organic molecules, contributing to the development of new pharmaceuticals and other specialty chemicals.

71042-55-2

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71042-55-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71042-55-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,0,4 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 71042-55:
(7*7)+(6*1)+(5*0)+(4*4)+(3*2)+(2*5)+(1*5)=92
92 % 10 = 2
So 71042-55-2 is a valid CAS Registry Number.
InChI:InChI=1/C31H28P2/c1-5-13-26(14-6-1)32(27-15-7-2-8-16-27)30-24-21-22-25(23-24)31(30)33(28-17-9-3-10-18-28)29-19-11-4-12-20-29/h1-22,24-25,30-31H,23H2/t24?,25?,30-,31-/m1/s1

71042-55-2 Well-known Company Product Price

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  • TCI America

  • (B3449)  (2R,3R)-(-)-2,3-Bis(diphenylphosphino)bicyclo[2.2.1]hept-5-ene  >98.0%(GC)

  • 71042-55-2

  • 100mg

  • 1,990.00CNY

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71042-55-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name (2R,3R)-(-)-Norphos

1.2 Other means of identification

Product number -
Other names (2R,3R)-(-)-2,3-Bis(diphenylphosphino)-bicyclo[2.2.1]hept-5-ene

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

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More Details:71042-55-2 SDS

71042-55-2Downstream Products

71042-55-2Relevant academic research and scientific papers

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

Brunner, Henri,Muschiol, Manfred,Zabel, Manfred

, p. 405 - 408 (2008/09/21)

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.

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