[2 + 2]‐Cycloaddition von Iminoboran und Iminophosphan

Abstract

[2 + 2]‐Cycloaddition Products from lminoborane and Iminophosphane The iminoborane BuBN t Bu ( 1a ) and the iminophosphanes R 2 NPNR′ ( 2a, b ) undergo a cyclisation to the corresponding 1,3,2,4‐diazaphosphaboretidines ( 3a, b ).