Increasing enantiomeric selectivity in chiral cyanohydrination

Details Increasing enantiomeric selectivity in chiral cyanohydrination Increasing enantiomeric selectivity in chiral cyanohydrination

1985-06-26

1986-09-09

Torrence, Dolph H.

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

Organic compounds

Nitriles

549 58, 549 75, 549426, 549491, C07C12175

Patent

active

046110771

ABSTRACT:
Enantiomeric selectivity is increased in chiral cyanohydrination of an aromatic aldehyde using a chiral cyclo(phenylalanylhistidine) catalyst by treating the (recycle) aldehyde to remove catalyst poisons or impurities which adversely effect enantiomeric selectivity.

REFERENCES:
Oku, J. et al., J.C.S. Chem. Comm., pp. 229-230 (1981).
Oku, J. et al., Makromol. Chem., 183, pp. 579-586 (1982).
Oku, J., Kagaku Kogyo, 32 (11), pp. 1134-1136 (62-64), Nov. 1981, and translation.

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