Preparation of 1-substituted 1-vinylcycloalkanes from 3,3-tetra- and 3,3-penta-methyleneallylboranes
β Scribed by Yu.N. Bubnov; V.I. Zheludeva; A.V. Ignatenko
- Book ID
- 107811439
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 530 KB
- Volume
- 359
- Category
- Article
- ISSN
- 0022-328X
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## Abstract The preparation of four series of 3,3βdiMeβ3βsilaβ1βXβcyclohexanes (with X=O, S, NMe, Se, Te) is reported. These series are: the parent compounds, the 2βphenyl derivatives, the 5βtert. Bu derivatives and the 6βMe derivatives. Attempts to prepare 4βsubstituted derivatives along analoguo
syn-Allene carbinol la or its esters 11 are transformed to sterically loaded 1,3arkad-I-rcarbamates 6 and 15 by Claisen rearrangement with high stereoselectivity. The structures of 6 and 15a were elucidated by single crystal X-ray analyses.