Uses
A nucleophilic two-carbon building block that participates in a variety of reactions including cycloaddition, multi-component, and domino reactions.
Preparation
(Triphenylphosphoranylidene)ketene (Ketenylidenetriphenylphosphorane) is prepared most conveniently by a β-elimination from
(Methoxycarbonylmethylene)triphenylphosphorane using Sodium Hexamethyldisilazide or Sodium
Amide as a base (eq 1).
reaction suitability
reaction type: C-C Bond Formation
storage
(Triphenylphosphoranylidene)ketene is absence of moisture and air is necessary.
