4.6 Article

Rhodium-catalyzed C-H activation/cyclization of aryl sulfoximines with iodonium ylides towards polycyclic 1,2-benzothiazines

Journal

ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 19, Issue 46, Pages 10085-10089

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ob02052h

Keywords

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Funding

  1. National Natural Science Foundation of China [21672028]
  2. Jiangsu Key Laboratory of Advanced Catalytic Materials Technology [BM2012110]
  3. Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX21_2783]

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The synthesis of 1,2-benzothiazine derivatives through rhodium-catalyzed C-H activation/cyclization of S-aryl sulfoximines with iodonium ylides was successfully developed for the first time. The functionalization of C-H and N-H bonds led to the formation of a variety of tricyclic and tetracyclic sulfoximine derivatives with moderate to excellent yields under simple reaction conditions.
The synthesis of 1,2-benzothiazine derivatives through rhodium-catalyzed C-H activation/cyclization of S-aryl sulfoximines with iodonium ylides was developed for the first time. In this report, C-H and N-H bond functionalization was realized towards a series of tricyclic and tetracyclic sulfoximine derivatives with moderate to excellent yields under simple reaction conditions.

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