Reactions of sulfinyl carbanions with organometallic compounds: Preparation of (η 5-C 5H 5) 2T [formula omitted]6H 4

Abstract

Sulfinyl carbanions, [RS(O)CHR′] −Li + (R = Ph, Me; R′ = H, Ph) have been observed to have often low reactivity towards neutral transition metal organometallic systems. When reactions do occur they usually involve salt eliminations and formation of complex mixtures containing inter alia organic sulfides, disulfides, freed ligands or their oxides and reduced forms of the organometallic reactants. From the sulfinyl ylide [PhS(O)CH 2]Li, exo-[η 5-C 6H 6CH 2S(O)Ph]Mn(CO) 3 and the new metallocyclic compound (η 5-C 5H 5) 2TiCH 2SC 6H 4 have been prepared, some properties of the latter examined and its sulfonium derivative [(η 5-C 5H 5) 2 TiCH 2S(Me)C 6 H 4]BF 4 isolated.