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Abstract:
Herein, we report a nickel-catalyzed oxidative coupling reaction for the synthesis of 3-azo-substituted 2-oxindoles. The key intermediates of 3-arylazohexahydropyrrolo-[2,3-b]indoles undergo further transformation to provide 3-azo-substituted 2-oxindoles in the presence of H 2 O, aryldiazonium tetrafluoroborate salts and catalytic amount of NiBr 2 . This reaction can be performed in an open flask at room temperature and exhibits a broad functional-group tolerance in moderate to excellent yields. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
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Asian Journal of Organic Chemistry
ISSN: 2193-5807
Year: 2019
Issue: 4
Volume: 8
Page: 475-478
3 . 1 3
JCR@2019
2 . 8 0 0
JCR@2023
ESI HC Threshold:184
JCR Journal Grade:2
CAS Journal Grade:3
Cited Count:
SCOPUS Cited Count: 2
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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