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Chiral iminophosphorane catalyzed asymmetric sulfenylation of 4-substituted pyrazolones

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Abstract

An excellent level of enantioselectivity in asymmetric sulfenylation of 4-substituted pyrazolones was achieved with chiral iminophosphorane as the organocatalyst under continuum solvation conditions (up to 99% ee). Importantly, this catalytic process features high efficiency with excellent enantioselectivities, easy separation of products, low catalytic loadings and scale-up to grams without loss of enantioselectivity.

Graphical abstract: Chiral iminophosphorane catalyzed asymmetric sulfenylation of 4-substituted pyrazolones

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Publication details

The article was received on 14 Nov 2018, accepted on 05 Dec 2018 and first published on 06 Dec 2018


Article type: Communication
DOI: 10.1039/C8CC09049A
Citation: Chem. Commun., 2019, Advance Article
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    Chiral iminophosphorane catalyzed asymmetric sulfenylation of 4-substituted pyrazolones

    J. Han, Y. Zhang, X. Wu and H. N. C. Wong, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C8CC09049A

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