[2 + 2] Cycloadducts from isocyanates and azaphospholes
作者:Alfred Schmidpeter、Thomas von Criegern
DOI:10.1039/c39780000470
日期:——
Methyl isocyanate adds with its CN group to the PN group of 1,2λ5-azaphospholes and -azaphospholines; depending on the nature of the ring and the phosphorus substituents the bicyclic adducts are stable or redissociate in solution or/and decompose in a Wittig-type reaction.