156485-68-6Relevant articles and documents
Chemistry of silylketenes: Simple preparation of silylallenes by the reaction of silylketenes with phosphorus ylides
Kita,Tsuzuki,Kitagaki,Akai
, p. 233 - 236 (1994)
Reaction of silylketenes 1a, b with stabilized ylides 2a-e readily gave silylallenes 3a-f in high yields. However, similar reaction of 1a with the less stable ylides 2f, g resulted in low yields of the allenes 3g, h. Use of silylketenes 5a, c with an additional trimethylsilyl group overcame this problem to give silylallenes 3c, g-k directly in considerable to good yields. In this reaction, the additional trimethylsilyl group apparently worked as a masking group.
