Cu-Catalyzed carbamoylation<i>versus</i>amination of quinoline<i>N</i>-oxide with formamides
作者:Yan Zhang、Shiwei Zhang、Guangxing Xu、Min Li、Chunlei Tang、Weizheng Fan
DOI:10.1039/c8ob02844c
日期:——
An efficient, direct carbamoylation and amination of quinoline N-oxides with formamides to access 2-carbamoyl and 2-amino quinolines has been developed throughcopper-catalyzed C–C and C–N bond formations via cross-dehydrogenative coupling reactions. The reaction proceeds smoothly over a broad range of substrates with excellent functional group tolerance under mild conditions. Mechanistic studies suggest
short reaction time, operational simplicity, and highly efficient reaction system. This protocol, which produces water as the only byproduct, provides efficient and atom-economical access to a class of fascinating quinoline and isoquinoline products in satisfactory yields. The method is effective on the gram scale, thus highlighting the inherent practicality of this methodology.
介绍了一种新的、绿色的、无过渡金属的方案,用于在Na 2 S 2 O 8存在下,从容易获得且对环境无害的喹啉和异喹啉N-氧化物与炔丙醇开始,用于轻松修饰喹啉和异喹啉衍生物或 K 2 S 2 O 8在 100°C。一锅转化具有官能团相容性好、反应时间短、操作简单、反应体系高效等优点。该协议产生水作为唯一的副产品,提供了以令人满意的收率获得一类引人入胜的喹啉和异喹啉产品的高效和原子经济的途径。该方法在克尺度上是有效的,从而突出了该方法的内在实用性。
[EN] THERAPEUTICALLY ACTIVE COMPOSITIONS AND THEIR METHODS OF USE<br/>[FR] COMPOSITIONS THÉRAPEUTIQUEMENT ACTIVES ET LEURS PROCÉDÉS D'UTILISATION
申请人:AGIOS PHARMACEUTICALS INC
公开号:WO2012171337A1
公开(公告)日:2012-12-20
Provided are compounds with the following structure, formula (I) pharmaceutically acceptable salts thereof, use of those compounds for treating cancer and pharmaceutical compositions comprising those compounds.
Regioselective deoxygenative C H trifluoromethylthiolation of heteroaryl N-oxides with AgSCF3
作者:Shi-Bo Zhang、Xiu-Hua Xu、Feng-Ling Qing
DOI:10.1016/j.jfluchem.2019.109367
日期:2019.11
trifluoromethylthiolation of heteroaryl N-oxides with AgSCF3 is presented, employing p-toluenesulfonic anhydride and tetra-n-butylammonium iodide as the activators. This reaction delivers a series of C2-trifluoromethylthiolated heteroaromaticcompounds in moderate to excellent yields. It provides a complementary method for CH trifluoromethylthiolation reactions.
C2-gem-Aryldifluoromethylation of Quinoline N-Oxides with Potassium 2,2-Difluoro-2-arylacetates under Transition-Metal-Free Conditions
作者:Jie Liu、Min Wang、Yanhui Gao、Laiqiang Li、Lei Wang
DOI:10.1055/a-1343-5642
日期:2021.5
A simple protocol for C2-gem-aryldifluoromethylation of quinolineN-oxides with potassium 2,2-difluoro-2-arylacetates has been developed, affording C2-gem-aryldifluoromethylated quinolineN-oxides bearing different functional groups in moderate to good yields. Moreover, experimental studies reveal that this reaction is likely to proceed through a radical pathway.