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An Efficient Synthesis of Spiro[indoline-3,9'-xanthene]trione Derivatives Catalyzed by Magnesium Perchlorate.


ABSTRACT: A simple and efficient method for the synthesis of spiro[indoline-3,9'-xanthene]trione derivatives by means of condensation between isatins and 1,3-cyclohexanedione in the presence of a catalytic amount of magnesium perchlorate at 80 °C in 50% aqueous ethanol medium has been described. Notably, the present method offers desirable advantages of good yields, simplicity of workup procedure, easy purification, and reduced reaction times.

SUBMITTER: Chen C 

PROVIDER: S-EPMC6152258 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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An Efficient Synthesis of Spiro[indoline-3,9'-xanthene]trione Derivatives Catalyzed by Magnesium Perchlorate.

Chen Chunfeng C   Lv Chunlei C   Liang Jianfeng J   Jin Jianqing J   Wang Lijun L   Wu Chunlei C   Shen Runpu R  

Molecules (Basel, Switzerland) 20170804 8


A simple and efficient method for the synthesis of spiro[indoline-3,9'-xanthene]trione derivatives by means of condensation between isatins and 1,3-cyclohexanedione in the presence of a catalytic amount of magnesium perchlorate at 80 °C in 50% aqueous ethanol medium has been described. Notably, the present method offers desirable advantages of good yields, simplicity of workup procedure, easy purification, and reduced reaction times. ...[more]

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