Reactions of sulfur diimides with ketenes

T Minami, K Yamataka, Y Ohshiro…

Index: Minami,T. et al. Journal of Organic Chemistry, 1972 , vol. 37, p. 3810 - 3818

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Citation Number: 31

Abstract

The reaction products of sulfur diimides 1 with diphenylketene (2a) are temperature dependent, The reaction of diphenylsulfur diimide (la) with 2a at 6-8" gave the 1, 2 cycloadduct 4 and at 80" the 1, l cycloadduct 6a. Refluxing 4 in benzene led to 6a and 2a. In contrast to la, di-tert-butylsulfur diimide (lb) and 2a at 0-2'gave 1, 2 cycloadduct 3b, which readily underwent rearrangement to 6b under hexane reflux. The reaction of sulfur ...

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