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
Chemoselective One-Pot Synthesis of Functionalized Amino-azaheterocycles Enabled by COware
作者:Thomas A. Clohessy、Alastair Roberts、Eric S. Manas、Vipulkumar K. Patel、Niall A. Anderson、Allan J. B. Watson
DOI:10.1021/acs.orglett.7b03214
日期:2017.12.1
Functionalized bicyclic amino-azaheterocycles are rapidly accessed in a one-pot cross-coupling/reduction sequence enabled by the use of COware. Incompatible reagents are physically separated in a single reaction vessel to effect two chemoselective transformations—Suzuki–Miyaura cross-coupling and heteroarene reduction. The developed method allows access to novel heterocyclic templates, including semisaturated
[EN] METHOD OF PREPARING SILYLATIVE-REDUCED N-HETEROCYCLIC COMPOUND USING ORGANOBORON CATALYST<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN COMPOSÉ N-HÉTÉROCYCLIQUE RÉDUIT PAR SILYLATION À L'AIDE D'UN CATALYSEUR À BASE D'ORGANOBORE
申请人:INST BASIC SCIENCE
公开号:WO2016076479A1
公开(公告)日:2016-05-19
Provided is a method of preparing a silylative-reduced N-heterocyclic compound by reducing an N-heteraromatic compound including a sp2 hybridized nitrogen atom while simultaneously introducing a silyl group into a beta-position with respect to a nitrogen atom of the N-heteroaromatic compound, using a silane compound, in the presence of an organoboron catalyst.
Enantioselective Synthesis of 4-Cyanotetrahydroquinolines via Ni-Catalyzed Hydrocyanation of 1,2-Dihydroquinolines
作者:Mingdong Jiao、Jihui Gao、Xianjie Fang
DOI:10.1021/acs.orglett.0c03171
日期:2020.11.6
A Ni-catalyzed asymmetric hydrocyanation that enables the formation of 4-cyanotetrahydroquinolines in good yields with excellent enantioselectivities is presented herein. A variety of functional groups are well-tolerated, and a gram-scale reaction supports the synthetic potential of the transformation. Additionally, several crucial intermediates for pharmaceutically active agents, including a PGD2
Disclosed are 7-phenyl-2-aminoquinoline compounds that are shown to inhibit the biological activity of neuronal nitric oxide synthases (nNOSs). Also disclosed are pharmaceutical compositions comprising the compounds, and methods of using the compounds and pharmaceutical compositions for treating a subject in need thereof. Because the disclosed compounds are shown to inhibit the activity of neuronal nitric oxide synthases (nNOSs), the disclosed compounds and pharmaceutical compositions may be utilized in methods for treating a subject having or at risk for developing a disease or disorder that is associated with nNOS activity including neurological diseases and disorders.