Tetrahedron Letters

A new synthesis of cyclopentanones by the ring expansion of 1-acyl-1-[p-tolyl (or methyl) thio] cyclobutanes

K Ogura, M Yamashita, J Onozuka, G Tushihashi

文献索引：Yamashita, Mitsuo; Onozuka, Junko; Tsuchihashi, Gen-ichi; Ogura, Katsuyuki Tetrahedron Letters, 1983 , vol. 24, # 1 p. 79 - 82

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被引用次数: 11

摘要

Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... A new ring expansion of 1-acyl-1-[p-tolyl(or methyl)thio]cyclobutanes to give 2-[p-tolyl(or methyl)thio]cyclopentanones and its application to the synthesis of 2-, 2,4-, or 2,5-substituted cyclopentanones were studied. ... : an oil; IR (film) 1732 cm −1 ; NMR (CDCl 3 ) δ 0.95 ...