Tetrahedron Letters p. 6317 - 6320 (1987)
Update date:2022-07-30
Topics:
Li, Xing-Ya
Hu, Jin-Shan
Phosphonium ylides Ph3=CHR (R = H, CH3, C2H5, n-C3H7, n-C5H11) react readily with perhalofluoroalkanes to afford regiospecifically α-haloalkylphosphonium salts Ph3P+-CHXR Y- (X = I, Br, Cl) in good yields.These reactions reveal a new type of reactivity phosphonium ylides, i.e., the halophilic attack on C-X bonds, and may be useful for the regiospecific synthesis of substituted haloolefins via Wittig reaction.
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Doi:10.1038/s41586-020-2919-z
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(1988)Doi:10.1002/hlca.200800412
(2009)
