Contraction of Medium Size Rings1

AT Blomquist, FW Schlaefer

文献索引：Blomquist,A.T.; Schlaefer,F.W. Journal of the American Chemical Society, 1961 , vol. 83, p. 4547 - 4549

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被引用次数: 12

摘要

With the object of providing an auxilliary sequence to the acyloin cyclization, irradiation of a- diazo ketones derived from simple nine-, ten-and eleven-membeied rings have been studied. In solvent aqueous dioxane they all have been found to contract smoothly and in fair yield to the corresponding cycloalkylcarboxylic acids, which contain one ring member less than the starting diazo ketone. This simple ring contraction thus provides an entree to ...