Sd. Han et Sr. Kass, THE SYNTHESIS OF POTENTIAL CYCLOPROPENYL ANION PRECURSORS - 3-METHYL-3-TRIMETHYLSILYLCYCLOPROPENE AND ITS DIBENZOYL DERIVATIVE, Tetrahedron letters, 38(43), 1997, pp. 7503-7506
3-Methyl-3-trimethylsilylcyclopropene (1) was prepared by reacting (Z)
-3-trimethyisilyl-2-butenyl chloride (5) with sodium amide. This compo
und (1) was converted to ,2-dibenzoyl-3-methyl-3-trimethylsilylcyclopr
opene (2), a rare example of an isolable cyclopropene with two electro
n withdrawing groups at the vinyl position, and the thermal isomerizat
ion of 2 was probed. (C) 1997 Elsevier Science Ltd.