35449-01-5Relevant academic research and scientific papers
Reactions of group IV organometallic compounds XXV. Preparations and reactions of tetramethylene-[(α-trimethylsilyl- or α-trimethylstannyl)phenacyl]sulphonium salts and ylides
Itoh, Kenji,Kato,Ishii
, p. 293 - 298 (1972)
Tetramethylene[(α-trimethylsilyl- and α-trimethylstannyl)phenacyl]sulphonium salts [(CH2)4S+CH(MMe3)COPh]Cl- (M = Si and Sn) have been prepared by the reaction of tetramethylenesulphonium phenacyclide (I) with the relevant Me3MCl. The thermal rearrangement of tetramethylene[(α-trimethylsilyl)phenacyl]sulphonium chloride (II) unexpectedly afforded Cl(CH2)4SCHC(OSiMe3)Ph (III) by a 1,3-migration of the trimethylsilyl group to the oxygen atom accompanied by simultaneous ring-opening. Tetramethylene[(α-trimethylstannyl)phenacyl]sulphonium chloride (IV) gave the corresponding ylide (VI) by reaction with n-butyllithium.
