Tetrahedron Letters p. 381 - 384 (1988)
Update date:2022-08-02
Topics:
Barluenga, Jose
Lopez, Fernando
Palacios, Francisco
Sanchez-Ferrando, Francisco
The reaction of alkoxycarbonylmethylentriphenylphosphonium ylides 7 with alkyl propynoates 6 in dichloromethane proceeds via <2+2>cycloaddition rather than Michael addition, to lead to stabilised phosphonium ylides.
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