π-Insertion Reactions of Benzynes into P=N and P=S Double Bonds
作者:Carmen Lopez-Leonardo、Rosalia Raja、Fernando López-Ortiz、Miguel Ángel del Águila-Sánchez、Mateo Alajarin
DOI:10.1002/ejoc.201301481
日期:2014.2
The π-insertion reactions of in situ generated benzynes into the P=N bonds of N-benzyl and N-aryl iminophosphoranes and the P=S bonds of phosphane sulfides have been examined by using the Kobayashi benzyne precursors, (2-trimethylsilyl)phenyl triflates. The reactions with iminophosphoranes afforded (2-aminophenyl)phosphonium triflates under mild conditions, most probably by a [2+2]/retro [2+2] cycloaddition