Study on Platinum(II) Induced Formation of Dithiiranes

✍ Scribed by Holm Petzold; Silvio Bräutigam; Helmar Görls; Wolfgang Weigand; Małgorzata Celeda; Grzegorz Mloston

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 150 KB
• Volume: 12
• Category: Article
• ISSN: 0947-6539
• DOI: 10.1002/chem.200501582

✦ Synopsis

Abstract

The reaction of a series of stable α‐chlorinated oligosulfanes 2 and 3 with [Pt(η^2^‐C~2~H~4~)(Ph~3~P)~2~] 1 have been investigated. Starting with the α‐chlorodisulfanes 2 a,b, the platinum dichloride complex 5 and the side‐on bonded thioketone platinum complexes 6 a,b were formed. Complex 1 was treated with corresponding trisulfanes 3 a,b to give 5, 6 a,b and the dithiolatocomplexes 7 a,b. We assume that the {Pt^0^(Ph~3~P)~2~}‐complex fragment inserted along the SS bond to form the unstable intermediate G, which decomposed to form the products described above. We could prove that the sterically crowded 1,2,4‐trithiolane 8 was not involved in the reaction pathway by treatment of 1 with 8 under the same conditions; after 24 h, 8 was found to be unreacted. X‐ray structure analyses were performed on complexes 6 a, 7 a and 7 b.