The methodology for the preparation, isolation, and characterization of platinacyclobutanes from cisdisubstituted cyclopropane derivatives is established. In this case the metallacyclobutane was successfully prepared and characterized from bicyclo [4.1. 0] heptane. Further, it is now quite reasonable to suggest that this platinacyclobutane complex is an intermediate in the reaction of Zeise's dimer, Pt (II), with bicyclo-[4.1. 0] heptane. ...
