4.7 Article

Gold-catalyzed redox cycloisomerization/nucleophilic addition/reduction: direct access to 2-phosphoryl indolin-3-ones

期刊

CHEMICAL COMMUNICATIONS
卷 58, 期 61, 页码 8568-8571

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc02774g

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资金

  1. National Natural Science Foundation of China [22161005, 21762005]
  2. Natural Science Foundation of Guangxi Province [2021GXNSFDA075005]

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An efficient gold(I)-catalyzed redox cycloisomerization/nucleophilic addition/reduction reaction of o-nitroalkynes with various H-phosphorus oxides is established, leading to the synthesis of arylphosphoryl and alkylphosphoryl indolin-3-ones with high functional group compatibility.
An efficient gold(i)-catalyzed redox cycloisomerization/nucleophilic addition/reduction reaction of o-nitroalkynes with various H-phosphorus oxides is established. Through the intramolecular redox cyclization of o-nitroalkynes and subsequent intermolecular nucleophilic addition/reduction with no external reactant, a variety of arylphosphoryl and alkylphosphoryl indolin-3-ones with high functional-group compatibility are obtained in moderate to good yields. Mechanistic studies suggest that phosphorus nucleophiles mediate the cleavage of the N-O bond as a reductant.

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