Journal of fluorine chemistry

Perfluororgailochalkogeno-ketene. III. Bis (pentafluorphenyl-sulfanyl) keten (C6F5S) 2C= C= O; Synthesen und Charakterisierung

A Haas, HW Praas, G Radau

Index: Haas, Alois; Praas, Hans-Walter; Radau, Godehard Journal of Fluorine Chemistry, 1994 , vol. 67, # 3 p. 257 - 260

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Abstract

Abstract Bis (pentafluorophenylsulfanyl) ketene (1) may be prepared in good yield by the dehydration of the corresponding substituted acetic acid (C 6 F 5 S) 2 CHC (O) OH (4b) with P 4 O 10 or by the reaction of C 6 F 5 SCl with Ag 2 CCO. The starting material 4b is prepared from CH 3 C (OCH 2 CH 3) 3 and C 6 F 5 SCl. Acidolysis of the C 6 F 5 S- substituted orthoesters 2 provided the ethyl esters CH 3− n (SC 6 F 5) n C (O) CH 2 CH 3 ( ...