A 1,2,3-triphosphabicyclo[1.1.0]butane and its [2 + 2]cycloaddition product with transient 1,2,3-triphosphabutadiene
Abstract
Reaction of R2NN(R)PPR with CIPCR2(R = SiMe3) affords a 1,2,3-triphosphabicyclo[1.1.0]butane, R2NN(R)[graphic ommitted]R2, which forms a [2 + 2]cycloaddition product with a transient 1,2,3-triphosphabutadiene, the structure of which has been determined.