Unexpected Thiol-Induced [2 + 2] Coupling Reaction Using a Doubly Alkynyl Bridging Diplatinum Complex as a Precursor
作者:Jesús R. Berenguer、Juan Forniés、Elena Lalinde、Francisco Martínez、Luis Sánchez、Blanca Serrano
DOI:10.1021/om971075n
日期:1998.4.1
Treatment of the dinuclear doubly alkynyl bridged diplatinum complex [trans-Pt(μ-η1:η2-C⋮CR)(C6F5)(PPh3)]2 (2; R = CEtMeOH) with HSPh leads to the formation of the novel thiolate cyclobutenediylidene heterobridged diplatinum (3), which is formed by an unexpected net [2 + 2] cycloaddition reaction. This is the first example of a homobinuclear complex containing a cyclic C4(CR‘R‘‘)R unsaturated bridging ligand