Branched Phospha[7]triangulanes
dataset
posted on 2004-03-17, 00:00 authored by J. Chris Slootweg, Marius Schakel, Frans J. J. de Kanter, Andreas W. Ehlers, Sergei I. Kozhushkov, Armin de Meijere, Martin Lutz, Anthony L. Spek, Koop LammertsmaA highly strained, thermally stable (up to 150 °C) branched phospha[7]triangulane was synthesized from the second-generation bicyclopropylidene and transient phosphinidene [Ph−PW(CO)5], followed by demetalation in refluxing xylene. Bulkier transient CuCl−alkene-complexed phosphinidene gave 2-phosphabicyclo-[3.2.0]hept-1(5)-ene as an additional product. The “outer sphere” spirocyclopropanes provide a stabilizing factor for both of these novel compounds.
