Transition-metal-substituted diphosphenes. 12. Transition-metal sulfur ylide complexes. 25. Alkylidene transfer to the P:P double bond of diphosphenyl complexes by means of the sulfur ylides (CH3)2S(O):CH2 and (c-C3H4)SPh2. X-ray structure analysis of [cyclic] (h5-C5Me5)(CO)2FePC(CH2CH2)PAr (Ar = 2,4,6-tert-Bu3C6H2).
The reaction of Cp1(CO)2MP:PR [I; M = Fe, Ru; R = 2,4,6-(Me3C)3C6H2; Cp1 = h5-pentamethylcyclopentadienyl] with Me2S(O):CH2 in THF at 20 Deg afforded the transition-metal-functionalized diphosphiranes II. Similarly the 1st 1,2-diphosphaspiro[2.2]pentanes III (same M, R) were synthesized from I and diphenylsulfonium cyclopropanide. The crystal and mol. structure of III (M = Fe) was detd.
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