temperature with triethylamine to generate the corresponding alkyl thioxoacetates, which have been trapped, in situ, by cycloaddition to conjugated dienes; the endo- and exo-adducts of cyclopentadiene and ethyl thioxoacetate dissociate at 111 °C thereby allowing transfer of the thioaldehyde to other conjugated dienes.
N-(甲氧羰基甲
硫基)-和N-(乙氧羰基甲
硫基)-邻苯二甲
酰亚胺在室温下与
三乙胺反应生成相应的烷基
硫代
氧代乙酸烷基酯,它们已通过环加成反应被原位捕获在共轭二烯中;的内切-和外切在111
环戊二烯和乙基
硫代
乙酸乙酯解离的-adducts℃,从而使
硫醛转移到其它共轭二烯。