作者:Th.A. van der Knaap、F. Bickelhaupt
DOI:10.1016/s0040-4020(01)91565-0
日期:1983.1
The reaction of (2,6-dimethylphenyl)diphenylmethylenephosphine (1) with tetrachloro-o-benzoquinone (2), 3,5-di-t-butyl-o-benzoquinone (3) and phenanthrenequinone (4) yielded the formal [2+4] cycloaddition products 5,14 and 19, respectively. In the given order, the rate of reaction and the formation of 1:2 adducts decreased. With 2 equivalents of the orthoquinones, the 1.2 adducts were the only products
(2,6-二甲基苯基)二苯基亚甲基膦(1)与四氯邻苯醌(2),3,5-二叔丁基邻苯醌(3)和菲醌(4)的反应生成了形式[2] +4]环加成产物分别为5,14和19。按照给定的顺序,反应速率和1:2加合物的形成降低。在2当量的邻醌中,仅观察到1.2个加合物。在当前关于三价磷化合物与邻醌反应的现有提议的背景下,讨论了加成反应的机理。