Herein, a highly efficient, scalable, and cascade [1,5] hydride transfer/cyclization method for constructing unique spirocyclic pyrazolone-pyrrolo[4,3,2-]quinoline structures C(sp)-H functionalization is achieved, using pyrazolones and oxindoles attached to C4 amines. This strategy represents a limited approach utilizing C-H activation to construct spirocyclic pyrazolone scaffolds with moderate to excellent reaction performance.
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http://dx.doi.org/10.1039/d3ob01063e | DOI Listing |
Org Biomol Chem
September 2023
State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy and College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Herein, a highly efficient, scalable, and cascade [1,5] hydride transfer/cyclization method for constructing unique spirocyclic pyrazolone-pyrrolo[4,3,2-]quinoline structures C(sp)-H functionalization is achieved, using pyrazolones and oxindoles attached to C4 amines. This strategy represents a limited approach utilizing C-H activation to construct spirocyclic pyrazolone scaffolds with moderate to excellent reaction performance.
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