Control elements in the asymmetric tandem alkylation of α-alkylidene-γ-butyrolactone derivatives
✍ Scribed by Kiyoshi Tomioka; Hisashi Kawasaki; Kenji Koga
- Book ID
- 104228760
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- French
- Weight
- 237 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
Control elements in the highly selective construction of contiguous tertiary and quaternary carbon centers by the tandem alkylation of a-alkylidene-y-butyrolactone derivatives were studied.
It is clarified that the stereochemical course of the reaction is rationalized by evaluating highly selective 1,2-, 1,3-, and 1,4-asymmetric inductions.
📜 SIMILAR VOLUMES
Complementary asymmetric alkylation reaction of the lithioenamine derived from 2methoxycarbonylcyclohexanone and (S)-valine tert-butyl ester was examined by employing the various electron oair donatino addTtives in a toluene solvent. in order to clarifv the factors controlling the diastereoface sele