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Cyclization of bis(acylsilanes) under nucleophilic activation. Competitive [1,2] carbone to oxygen and [1,4] oxygen to oxygen silyl migration

✍ Scribed by D Saleur; J.-P Bouillon; C Portella


Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
69 KB
Volume
42
Category
Article
ISSN
0040-4039

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Reversible 1,4 migration of a silyl grou
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## Anions generated from trialkylsilyl ethers of methyl ketoximes (1) undergo anionic rearrangement with 1,4 migration of the silyl group. After protonation, the resulting a-trialkylsilyl ketoximes (2), suffer thermal rearrangement with 1,4 migration of the silyl group from carbon to oxygen.