Ketene bis (phenylthio) acetals. Easily prepared intermediates for the conversion of acids and esters to. alpha.-alkylidene ketones and sulfur-substituted dienes

T Cohen, RE Gapinski, RR Hutchins

Index: Cohen,T. et al. Journal of Organic Chemistry, 1979 , vol. 44, # 20 p. 3599 - 3601

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Citation Number: 30

Abstract

The present method is competitive with that recently reported by Mukaiyama et which yields 1 in about 95% ee. Acknowledgment. is made to the Donors of the Pe- troleum Research Fund, administered by the American Chemical Society, for support of this research. ... (10) A mixture of the two diasteromers was produced, for NMR comparison, by reaction of the lithium derivative of 4 with acetophenone. (11) Goering, HL; Eikenberry, J. N.; Koermer, G. S.; ...