Olefinic stereoselection in the [2,3]-Wi
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Katsuhiko Tomooka; Tatsuya Igarashi; Naoyuki Kishi; Takeshi Nakai
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Article
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1999
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Elsevier Science
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French
⚖ 237 KB
The F\_,/Z-selectivities in the [2,3]-Wittig rearrangements of secondary 13-(methyl or silyl)allylic ethers are shown to depend critically on the nature of groups on the carbanion terminus, thereby permitting elucidation of the structural requirements for attaining high Z-selectivity.