ON THE REACTION OF<i>N</i>-VINYLIMINOPHOSPHORANES. SYNTHESIS AND REACTION OF 1,2-λ<sup>5</sup>-AZAPHOSPHORINE RING SYSTEM
作者:Tomoshige Kobayashi、Makoto Nitta
DOI:10.1246/cl.1985.1459
日期:1985.10.5
The reaction of N-vinyliminotrimethoxyphosphorane reacts with electron deficient acetylenes results in the formation of formal [4+2] cycloadducts, 1,2-λ5-azaphosphorines 4a-c. However, N-vinyliminotriphenylphosphorane reacts with dimethyl acetylenedicarboxylate (DMAD) in a formal [2+2] manner. The product 4a or 4b also reacts with DMAD to give λ5-phosphorine derivatives.