Rhodium(III)‐Catalyzed Amidation of Unactivated C(sp
<sup>3</sup>
)H Bonds
作者:He Wang、Guodong Tang、Xingwei Li
DOI:10.1002/anie.201506323
日期:2015.10.26
Nitrogenation by direct functionalization of CHbonds represents an important strategy for constructing CN bonds. Rhodium(III)‐catalyzed direct amidation of unactivatedC(sp3)Hbonds is rare, especially under mild reaction conditions. Herein, a broad scope of C(sp3)Hbonds are amidated under rhodium catalysis in high efficiency using 3‐substituted 1,4,2‐dioxazol‐5‐ones as the amide source. The
Copper-Mediated Cross-Dehydrogenative Coupling of 2-Methylpyridine and 8-Methylquinoline with Methyl Ketones and Benzamides
作者:Gadde Sathish Kumar、Joshua William Boyle、Ciputra Tejo、Philip Wai Hong Chan
DOI:10.1002/asia.201501096
日期:2016.2
synthetic method to prepare (E)‐(pyridin‐2‐yl)enones and (E)‐(quinolin‐8‐yl)enones that relies on the respective copper(I)‐catalyzed formal cross‐dehydrogenative coupling (CDC) reaction of 2‐methylpyridine and 8‐methylquinoline with methyl ketones has been discovered. The mechanism was delineated to follow a pathway involving oxidation of the N‐heterocycle to its corresponding aldehyde adduct prior