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Communication | Regular issue | Vol 4, No. 4, 1976, pp.739-742
Published online, 1st January, 1970
DOI: 10.3987/R-1976-04-0739
Reactions of Phenyl-pyrylium Salts with Phenacylidenedimethylsulfurane

Yoshizo Suzuki,* Takashi Toda, and Toshio Mukai

*Department of Chemistry, Faculty of Science, Tohoku University, Aoba-ku, Ssendai 980-8578, Japan


Reactions of 2,4,6-triphenyl- (1) and 2,6-diphenylpyryliun (6) salts with phenacylidenedimethylsulfurane (2) gave corresponding addition products (3 and 7) which possess ylid structures. Alkali treatment of 3 and 7 afforded 2,4,6-triphenylthioanisole (4) and 4-benzoylmethylene-2,6-diphenyl-4H-pyran (8), respectively.