Process for preparing cephalosporin intermediates

Details Process for preparing cephalosporin intermediates Process for preparing cephalosporin intermediates

1985-02-22

1985-09-03

Brust, Joseph Paul

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

Organic compounds

Carboxylic acid esters

C07C 69003

Patent

active

045394229

ABSTRACT:
A process for preparing a C.sub.3 -C.sub.8 alkyl cyanoformate derivative employing a liquid-liquid phase transfer catalysis conducted at low temperatures.

REFERENCES:
patent: 3962272 (1976-06-01), Katner
patent: 4174347 (1979-11-01), Austermuhle-Bertola
Childs et al.; J. Org. Chem., 41 (No. 21), 1976, pp. 3486 and 3487, Preparation of Cyanoformates, Crown Ether Phase Transfer Catalysts.
Nii et al.; Tetrahedron Letters, 27, pp. 2517-2520 (1979), Synthesis of Amidinoformic Acids Using Benzyl Cyanoformate as a Synthon.

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