作者:Francisco Palacios、Concepción Alonso、Gloria Rubiales、Jose Marı́a Ezpeleta
DOI:10.1016/j.tet.2004.01.052
日期:2004.3
N-Vinylic phosphazenes react as enamines (1,4-addition) with azodicarboxylic esters, whereas different behavior is observed when these phosphazenes react with dimethyl acetylenedicarboxylate (3,4-addition). A [2+2] cycloaddition reaction of the vinyl moiety of vinylic phosphazenes with the acetylenic triple bond of the acetylenic esters followed by a ring opening leads to the formation of functionalized conjugated
N-乙烯基磷腈作为烯胺(1,4-加成)与偶氮二羧酸酯反应,而当这些磷腈与乙炔二羧酸二甲酯(3,4-加成)反应时,观察到不同的行为。乙烯基磷腈的乙烯基部分与炔属酯的炔三键的[2 + 2]环加成反应随后开环导致形成官能化的共轭磷腈。