<i>para</i>
‐Selective Palladium‐Catalyzed C−H Difluoroalkylation by Weak Oxazolidinone Assistance
作者:Xinyue Fang、Yuqiang Tan、Linghui Gu、Lutz Ackermann、Wenbo Ma
DOI:10.1002/cctc.202002056
日期:2021.4.9
Herein, we report a general and efficient method for the palladium‐catalyzed remote C(sp2)−Hdifluoroalkylation of N‐aryloxazolidinone derivatives with commercially available difluoroalkylbromide. This method tolerates a wide range of functional groups with 26 examples in up to 96 % yields. Moreover, it proceeds with complete para‐selectivity. Preliminary mechanistic studies indicated that a single
COMPOUNDS AND COMPOSITIONS AS INHIBITORS OF CANNABINOID RECEPTOR 1 ACTIVITY
申请人:Liu Hong
公开号:US20100234365A1
公开(公告)日:2010-09-16
The invention provides compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with the activity of Cannabinoid Receptor 1 (CB1).
Copper-Catalyzed One-Pot Synthesis of <i>N</i>-Aryl Oxazolidinones from Amino Alcohol Carbamates
作者:William Mahy、Pawel K. Plucinski、Christopher G. Frost
DOI:10.1021/ol502322c
日期:2014.10.3
sequential intramolecular cyclization of aminoalcoholcarbamates followed by Cu-catalyzed cross-coupling with aryl iodides under mild conditions has been developed. The reaction occurred in good yields and tolerated aryl iodides containing functionalities such as nitriles, ketones, ethers, and halogens. Heteroaryl iodides and substituted aminoalcoholcarbamates were also well tolerated.
Ruthenium-Catalyzed<i>O</i>- to<i>S</i>-Alkyl Migration: A Pseudoreversible Barton-McCombie Pathway
作者:William Mahy、Pawel Plucinski、Jesús Jover、Christopher G. Frost
DOI:10.1002/anie.201505280
日期:2015.9.7
A practical ruthenium‐catalyzed O‐ to S‐alkyl migration affords structurally diverse thiooxazolidinones in excellent yields. Our studies suggest this catalytic transformation proceeds through a pseudoreversible radical pathway drawing mechanistic parallels to the classic Barton–McCombie reaction.