Shin-taro Katayama, H. Nishino
May 24, 2019
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Influential Citations
7
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Journal
Synthesis
Abstract
Abstract The Mn(III)-based oxidative cyclization of twenty-five N-aryl-2-oxocycloalkane-1-carboxamides is investigated. The reactions progress efficiently to give the desired spiro[cycloalkane-1,3′-indoline]-2,2′-diones in high to quantitative yields. The easy conversion of the carbonyl functional group of one of the indoline products, 1′-methylspiro[cyclohexane-1,3′-indoline]-2,2′-dione, is also demonstrated.