Branched phospha[7]triangulanes.
A highly strained, thermally stable (up to 150 degrees C) branched phospha[7]triangulane was synthesized from the second-generation bicyclopropylidene and transient phosphinidene [Ph-P=W(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.
Slootweg
J Chris
JC
Department of Chemistry, Faculty of Sciences, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands.
Schakel
Marius
M
de Kanter
Frans J J
FJ
Ehlers
Andreas W
AW
Kozhushkov
Sergei I
SI
de Meijere
Armin
A
Lutz
Martin
M
Spek
Anthony L
AL
Lammertsma
Koop
K