Rh-Catalyzed C–C/C–N bond formation via C–H activation: synthesis of 2H-indazol-2-yl-benzo[a]carbazoles. Issue 23 (24th October 2019)

• Record Type: Journal Article
• Authors: Vivek Kumar, Sundaravel; Banerjee, Sonbidya; Punniyamurthy, Tharmalingam
• Is Part Of: Organic chemistry frontiers. Volume 6:Issue 23(2019)
• Page Start: 3885
• Page End: 3890
• Publication Date: 2019-10-24
• Subjects: Chemistry, Organic -- Periodicals; 547.005
• DOI: 10.1039/c9qo01120j
• Languages: English
• ISSNs: 2052-4110

Abstract

Abstract : Rh-Catalyzed site-selective C–H activation and ring opening/cyclization of 7-azabenzonorbornadienes with aryl-2 H -indazoles is developed to furnish indazolyl-benzocarbazole frameworks. Substrate scope and mechanistic studies are important practical features. Abstract : Rh-Catalyzed tandem site-selective C–H activation and ring opening/cyclization of 7-azabenzonorbornadienes with aryl-2 H -indazoles is developed to furnish indazolyl-benzocarbazoles. The mechanistic studies suggest that the second C–H activation is the product-determining step. The use of an air stable cationic Rh-catalyst and site-selectivity, and substrate scope are the important practical features.