Optical resolution of the racemic modification of 2,2'-bis(diphe

Details Optical resolution of the racemic modification of 2,2'-bis(diphe Optical resolution of the racemic modification of 2,2'-bis(diphe

1984-02-23

1986-01-14

Sneed, Helen M. S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus containing

C07F 953

Patent

active

045647089

ABSTRACT:
D-2,2'-bis(diphenylphosphino)-1,1'-binaphthyldioxide and 1-2,2'-bis(diphenylphosphino)-1,1'-binaphthyldioxide are produced by reacting d1-2,2'-bis(diphenylphosphino)-1,1'-binaphthyldioxide with optically active camphor-10-sulfonic acid or optically active 3-bromo-camphor-10-sulfonic acid as a resolving agent in a lower alkyl ester of acetic acid containing a lower alkyl carboxylic acid, thereby forming diastereomeric salts, and optically resolving said diastereomeric salts.

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Meisenheimer et al., Chem. Ber. 44, 356 (1911).
Meisenheimer et al., Ann. 449, 213-248 (1926).

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