Herstellung von 1,2,4‐Trithiolan‐, 1,2,4,5‐Tetrathian‐ sowie 1,2,3,5,6‐Pentathiepan‐S‐oxiden und deren Reaktionen mit (Ph3P)2Pt(η2‐C2H4). Kristallstrukturanalyse von 3,3,5,5‐Tetraphenyl‐1,2,4‐trithiolan‐1‐oxid

Metal Complexes of Functionalized Sulfur‐containing Ligands. XVII Synthesis of S ‐Oxides of 1,2,4‐Trithiolane, 1,2,4,5‐Tetrathiane as well as 1,2,3,5,6‐Pentathiepane, and their Reactions with (Ph₃P)₂Pt(η²‐C₂H₄). X‐Ray Structure Analysis of 3,3,5,5‐Tetraphenyl‐1,2,4‐trithiolane 1‐oxide 3,3,5,5‐Tetraphenyl‐1,2,4‐trithiolan ( 1 ) was oxidized using m‐chloroperbenzoic acid to give, selectively, the 3,3,5,5‐tetraphenyl‐1,2,4‐trithiolane 1‐oxide ( 2 ). 2 was characterized structurally. The reaction of octamethyl tetrathiadispiro[3.2.3.2]dodecane‐2,9‐dione ( 3 ) with trifluoroperacetic acid at –50 °C yielded the corresponding 5‐oxide 4 . Oxidation of octamethyl pentathiadispiro[3.3.3.2]tridecane‐2,9‐dione ( 5 ) with m‐chloroperbenzoic acid at 0 °C gave the 12‐oxide 6 . Treatment of 2 with two equivalents of (Ph₃P)₂Pt(η²‐C₂H₄) ( 7 ) afforded a mixture (1 : 1) of the complexes (Ph₃P)₂PtSCPh₂S ( 8 ) and (Ph₃P)₂Pt(η²‐Ph₂C=S=O) ( 9 ), respectively.