4.8 Article

Asymmetric Catalytic 1,2-Hydroperoxidation of Isatin-Derived Ketimine with Hydrogen Peroxide in the Crowding Environment of PEGs

Journal

ORGANIC LETTERS
Volume 19, Issue 5, Pages 1044-1047

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.7b00032

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Funding

  1. Natural Science Foundation of China [21322202, 21472187]

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The first enantioselective catalytic 1,2-hydroperoxidation has been achieved in the presence of PEG-600 using an acid base bifunctional chiral squaramide as the organocatalyst, affording a range of enantioenriched alpha-N-substituted hydroperoxides bearing an oxindole moiety with excellent stereoselectivities (up to 99% ee).

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