A palladium-catalysed aminocarbonylation of (hetero)aryliodides has, for the first time, been accomplished in deep eutectic solvents as environmentally benign and recyclable media, under mild conditions. The reactions proceeded with a good substrate scope, and a variety of amides have been synthesized in yields up to 98%.
Tf<sub>2</sub>O- and Cu(OTf)<sub>2</sub>-Assisted Acylamination Reaction of Unactivated Alcohols with Nitriles: A One-Pot P(IV) Activation, Stereoretention in Cycloalkanols and Deprotection Approach
作者:Mohammad Yaqoob Bhat、Sajjad Ahmed、Qazi Naveed Ahmed
DOI:10.1021/acs.joc.2c01251
日期:2022.9.2
Described herein is a simple, novel, one-pot acylamination reaction of unactivated alcohols. This reaction employs the combination of PCl3 and triflic anhydride (Tf2O) or copper triflate Cu(OTf)2, which serves as a source of P(IV)-activated complex for nitriles to react under the Ritter-type mechanism. The synthetic utility of Tf2O-promoted reactions was demonstrated by its effectiveness to generate different
A Site-Selective C(sp<sup>3</sup>)-H Chlorination Boosted by an Imidazolium-Functionalized Cage in Water
作者:Chengyi Wang、Chunxia Tan、Yuanli Zhu、Guohua Liu、Yongliang Huang、Rui Liu
DOI:10.1021/acscatal.3c04111
日期:2023.11.3
efficient N-chlorination, and the created cavity favors a six-membered cyclic transitionstate for chlorineatom transfer, boosting the site-selective C(sp3)–H chlorination of amides/sulfonamides in the water. Our mechanistic investigations have disclosed the rate-determining N–Cl activation mode within the cavity for the chlorineatom transfer pathways.