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Sigmatropic [2,3]-wittig rearrangement of α-allylic-heterosubstituted methylphosphonates. Part 2: Rearrangement in the nitrogen series

✍ Scribed by Mihaela Gulea-Purcarescu; Elie About-Jaudet; Noël Collignon; Monique Saquet; Serge Masson


Publisher
Elsevier Science
Year
1996
Tongue
French
Weight
850 KB
Volume
52
Category
Article
ISSN
0040-4020

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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.