Abstract

The cyclic five-membered platinum(II) oxycarbene complex trans-[Pt(Me){CCH(p-tolyl)CH2CH2O}(PPh3)2][BF4] (1) can be prepared in good yield under very mild conditions either by reaction of trans-[Pt(Me)(C⋮C-p-tolyl)(PPh3)2] with oxirane in the presence of 1 equiv of HBF4 or by reaction of the cationic solvato complex trans-[Pt(Me)(PPh3)2(solv)][BF4] with oxirane and 1.5 equiv of p-tolylacetylene. The X-ray crystal structure of 1 is reported.

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