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Anionic activation of stabilized ylides. A highly Z-stereoselective wittig reaction of (3-ethoxycarbonyl-2-oxopropylidene)triphenyl-phosphorane with aliphatic aldehydes

1986; Elsevier BV; Volume: 27; Issue: 6 Linguagem: Inglês

10.1016/s0040-4039(00)84088-5

1873-3581

K. Michał Pietrusiewicz, J. Monkiewicz,

Cyclopropane Reaction Mechanisms

Reaction of stabilized ylide 1 with carbonyl partners can be promoted via anionic activation of the ylide; the presence of charge is responsible for the high Z-selectivity in the direct formation of conjugated enones.