A ruthenium‐catalyzed direct C7 amidation of indoline CHbonds with sulfonyl azides was developed. This procedure allows the synthesis of a variety of 7‐amino‐substituted indolines, which are useful in pharmaceutical. The good functional tolerances, as well as the mild conditions, are prominent feature of this method.
Rhodium-catalyzed C7-alkylation of indolines with maleimides
作者:Changduo Pan、Yun Wang、Chao Wu、Jin-Tao Yu
DOI:10.1039/c7ob03039h
日期:——
A rhodium(III)-catalyzed direct cross-coupling reaction of indolines with maleimides via C–H bond activation was developed. This protocol displays good functional group tolerance, which offers a novel approach to access C7 modified indoline derivatives including maleimide analogues.
Copper-catalyzed oxidativeintramolecularcyclization of o-alkylated anilines via cleavage of C(sp3)-H and N-H bonds for the production of indolines is described. This approach provides a straightforward strategy for the synthesis of nitrogen-containing heterocyclic compounds through the functionalization of unactivated C(sp3)-H bonds with high site selectivity. The present catalytic system shows high preference
Cu-Catalyzed Intramolecular Amidation of Unactivated C(sp<sup>3</sup>
)−H Bonds To Synthesize N-Substituted Indolines
作者:Fei Pan、Bin Wu、Zhang-Jie Shi
DOI:10.1002/chem.201600680
日期:2016.5.4
A copper‐catalyzed intramolecularamidation of unactivated C(sp3)−H bonds to construct indoline derivatives has been developed. Such an amidation proceeded well at primary C−H bonds preferred to secondary C−H bonds. The transformation owned a broad substrate scope. The corresponding indolines were obtained in good to excellent yields. N‐Formal and other carbonyl groups were suitable and were easily
Rhodium(III)-catalyzed direct C-7 sulfonamidation and amination of indolines with arylsulfonamides and trifluoroacetamide
作者:Yaqun Dong、Song Sun、Jin-tao Yu、Jiang Cheng
DOI:10.1016/j.tetlet.2019.03.069
日期:2019.5
A rhodium-catalyzeddirect C–H sulfonamidation and amidation of C-7 position of indolines by simple and commercially available arylsulfonamides and trifluoroacetamide has been developed, affording a series of N-arylsulfonamides and N-aryltrifluoroacetamides in moderate to excellent yields, respectively. Notably, this catalytic system is highly convenient on mmol scale.