4-dienylamines (10). The kinetics of these reactions have been investigated and an explanation of substituent effects is advanced. Also a new route to m-hydroxybenzoic acids has been established by cyclisation of substituted hexa-3,4:5,6-dienoic acids.
一系列取代的1,2,3,6-(5)和1,2,5,6-四氢
吡啶(6)的已合成经由分子内1,6-迈克尔加成甲氧基羰基-2,4- dienylamines的( 10)。已经研究了这些反应的动力学,并提出了取代基效应的解释。还到一个新的路由米5,6-二烯酸:对羟基酸已被取代的六- 3,4-环化建立。