Reaction of lithium trimethylsilyldiazomethanide with ketenimines bearing electron-withdrawing groups
T Aoyama, T Nakano, K Marumo, Y Uno, T Shioiri
Index: Aoyama; Nakano; Marumo; Uno; Shioiri Synthesis, 1991 , # 12 p. 1163 - 1167
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Citation Number: 11
Abstract
Ketenimines bearing electron-withdrawing groups (X in 1) at the C2-position react with lithium trimethylsilyldiazomethanide [diazo (lithio) trimethylsilylmethane] to give 4-amino-3- trimethylsilylpyrazoles 4 or 5 mainly; in some cases 4-trimethylsilyl-1, 2, 3-triazole derivatives 3 were formed as the major products.
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