Studies on Acetylenic Compounds. LVII. Reactions of 2-Propynyl Sulfones with Cyclic Ketones

M YOSHIMOTO, N ISHIDA, Y KISHIDA

Index: Yoshimoto,M. et al. Chemical and Pharmaceutical Bulletin, 1971 , vol. 19, p. 1409 - 1415

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Abstract

2-Butynyl phenyl sulfone (VI) and cyclic ketones were treated with sodium hydride to give the corresponding 1: 1 addition products, respectively. The structures were assigned to 1- phenylsulfonyl-3-(1-cyclohexenyl) 2-butanone (VII) and 2-phenylsulfonylmethylene-3- methyloxetane-4-spiro-1'-cyclohexane (VIII) in the case of cyclohexanone and assigned to 1- phenylsulfonyL-3-(1-cyclopentenyL) 2-butanone (XIII) in the case of cyclopentanone, ...