A New Cyclization. 2-Methylenecyclopentanols by the Chemical Reduction of γ-Ethinyl Ketones

G Stork, S Malhotra, H Thompson…

Index: Stork,G. et al. Journal of the American Chemical Society, 1965 , vol. 87, p. 1148 - 1149

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Citation Number: 69

Abstract

IX which showed absorption at T 4.9 and 5.1 (1 H each) characteristic of the terminal methylene group. Final chemical confirmation of the structure of IX follows from its rearrangement, j on heating with methanolic hydrochloric acid, into the tetracyclic ketone X, mp 132-134"(Anal. Found: C, 79.53; H, 7.79, which had the typical cyclopentanone absorption at-1750 cm.-', while the nmr spectrum showed the disappearance of vinylic ...