Conversion of 1, 3-Dicarbonyls to 1, 4-Dicarbonyls

…, H Kurihara, H Miura, A Hongu, N Kubota…

Index: Saigo, Kazuhiko; Kurihara, Hiroshi; Miura, Hisao; Hongu, Akinori; Kubota, Naomi; et al. Synthetic Communications, 1984 , vol. 14, # 9 p. 787 - 796

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Citation Number: 28

Abstract

Abstract: The cycopropanation of B-trimethylsiloxy a,@-unsaturated esters and ketones, prepared from 1,3-dicarbonyl compounds, with carbenes followed by ring cleavage gave corresponding 1,4-dicarbonyl compounds in moderate yields. ... The cyclopropanation of enols (enol ester, enol ... Chemistry, Faculty of Engineering, Saitama University, Shimo-ohkubo, Urawa 338, Japan. ... 6-dialkylamino a,@-unsaturated esters with methylene or