The inter-and intramolecular addition of aromatic ketone triplets to quadricyclenes
作者:A.J.G. Barwise、A.A. Gorman、R.L. Leyland、C.T. Parekh、P.G. Smith
DOI:10.1016/0040-4020(80)87008-6
日期:——
Irradiation of acetophenone or benzophenone in the presence of norbornadiene or quadricyclene gives 1: 1-adducts. These arise via reaction of the ketone triplet with the quadricyclene. Similar reactivity is exhibited in an intramolecular sense by 7-phenacylnorbornadiene and the corresponding quadricyclene. Addition of tripletbenzophenone to 5-methylene norbornene is regiospecific in contrast to expectations