Process for preparing ruthenium-phosphine complex

Details Process for preparing ruthenium-phosphine complex Process for preparing ruthenium-phosphine complex

1997-09-19

1999-07-06

Nazario-Gonzalez, Porfirio

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

Organic compounds

Heavy metal containing

556136, 502162, C07F 902, C07F 1500

Patent

active

059199628

ABSTRACT:
Disclosed is a ruthenium-phosphine complex represented by formula (I):
wherein R is hydrogen, an alkyl group having 1 to 5 carbon atoms, a cycloalkyl group, a substituted or unsubstituted phenyl group or a substituted or unsubstituted benzyl group; X is halogen; and L is an optically active or inactive tertiary phosphine. A process for preparing the complex (I) is also disclosed, which comprises (A) reacting a is a substituted or unsubstituted phenyl group) and an ammonium salt represented by formula (III): R.sub.2 NH.HX, or (B) reacting a ruthenium phosphine represented by L, and an ammonium salt (III). The complex (I) useful as a catalyst for general syntheses or asymmetric syntheses can be obtained easily in good yield.

REFERENCES:
Kazushi Mashima, Organometallics, vol. 16, No. 6, Mar. 19, 1996, pp. 1521-1523.

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