C−N Bond formation is of great significance due to the ubiquity of nitrogen‐containing compounds. Here, a mild and efficient RhIII‐catalyzed C(sp3)−H aryl amination reaction is reported. Anthranil is employed as the nitrogen source with 100 % atom efficiency. This C−H amination reaction exhibits broad substrate scope without using any external oxidants. Mechanistic studies including rhodacycle intermediates
Rhodium(III)-Catalyzed Alkenylation Reactions of 8-Methylquinolines with Alkynes by C(sp<sup>3</sup>)H Activation
作者:Bingxian Liu、Tao Zhou、Bin Li、Shansheng Xu、Haibin Song、Baiquan Wang
DOI:10.1002/anie.201310711
日期:2014.4.14
The alkenylationreactions of 8‐methylquinolines with alkynes, catalyzed by [Cp*RhCl2}2], proceeds efficiently to give 8‐allylquinolines in good yields by C(sp3)H bond activation. These reactions are highly regio‐ and stereoselective. A catalytically competent five‐membered rhodacycle has been structurally characterized, thus revealing a key intermediate in the catalytic cycle.
Cobalt-catalyzed ring-opening addition of azabenzonorbornadienes <i>via</i> C(sp<sup>3</sup>)–H bond activation of 8-methylquinoline
作者:Heng Tan、Ruhima Khan、Dandan Xu、Yongyun Zhou、Xuexin Zhang、Guangrui Shi、Baomin Fan
DOI:10.1039/d0cc05374k
日期:——
The first ring-opening addition of a benzylic C(sp3)–H bond to azabenzonorbornadienes is demonstrated.
第一个苄基C(sp3)-H键向氮杂苯并[2.2.1]环庚二烯的环开合加成被证明了。
Rhodium(III)-Catalyzed C(sp<sup>3</sup>)–H Alkylation of 8-Methylquinolines with Maleimides
作者:Sangil Han、Jihye Park、Saegun Kim、Suk Hun Lee、Satyasheel Sharma、Neeraj Kumar Mishra、Young Hoon Jung、In Su Kim
DOI:10.1021/acs.orglett.6b02295
日期:2016.9.16
The rhodium(III)-catalyzed cross-coupling reaction of 8-methylquinolines and maleimides is described. In contrast to the C(sp2)–H functionalization, a first catalytic functionalization of sp3 C–H bonds with maleimides is reported. This protocol provides a facile access to various succinimide scaffolds on 8-methylquinolines via a direct C–H cleavage approach.