Chemistry Letters p. 1459 - 1462 (1985)
Update date:2022-09-26
Topics:
Kobayashi, Tomoshige
Nitta, Makoto
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.
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Doi:10.1055/s-0029-1217021
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