Reaction of Imines with 5, 5??Dimethyl??1, 3??cyclohexandione

…, X Li, H Wang, D Shi, S Tu, Q Zhuang

Index: Rong, Liangce; Li, Xiaoyue; Wang, Haiying; Shi, Daqing; Tu, Shujiang; Zhuang, Qiya Synthetic Communications, 2006 , vol. 36, # 16 p. 2345 - 2353

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Citation Number: 12

Abstract

Abstract The reaction of imines 1 with 5, 5??dimethyl??1, 3??cyclohexandione 2 in methanol was investigated. When the reaction was carried out without a catalytic amount of molecular iodine, ring??opening derivatives of xanthenediones 3 were obtained in high yields. On the other hand, when molecular iodine and a catalytic amount of zinc powder were employed as the catalyst, xanthenediones derivatives 4 were obtained with excellent yields.