Tetrahydroquinilinones, tetrahydronaphthyridones and derivatives thereof
申请人:Gustafson Gary R.
公开号:US20080161340A1
公开(公告)日:2008-07-03
Tetrahydroquinolinone and tetrahydronaphthyridone cannabinoid receptor ligand compounds and stereoisomers, mixtures of stereoisomers, prodrugs, pharmaceutically acceptable salts, hydrates, solvates, acid salt hydrates, and isomorphic crystalline forms thereof are described. The compounds conform to the structure of formula I:
Herein, we report a novel regioselective [2 + 1] cyclization reaction of 2-pyridones with carbenes generated in situ via visible light irradiation, without the requirement for catalysts or additives. The diverse functional groups of 2-pyridones and diazo compounds exhibit good tolerance, enabling the rapidsynthesis of highly valuable cyclopropanated dihydro-2-pyridone scaffolds with exceptional regio-
Catalytic Transformations of 2-Pyridones by Rhodium-Mediated Carbene Transfer
作者:Jiahui Su、Qiongya Li、Ying Shao、Jiangtao Sun
DOI:10.1021/acs.orglett.2c00151
日期:2022.3.4
compounds has been realized by using a chiral rhodiumcomplex as the catalyst, and the corresponding chiral cyclopropanes could be formed in good yields with high enantioselectivities. Moreover, using acceptor–acceptor dimethyl 2-diazomalonate as the carbene precursor, a novel 1,4-rearrangement of a Boc group from N to C has also been discovered under rhodium catalysis.
以手性铑配合物为催化剂,实现了N-取代的2-吡啶酮与重氮化合物的对映选择性环丙烷化反应,能够以良好的收率和高对映选择性生成相应的手性环丙烷。此外,使用受体-受体 2-重氮丙二酸二甲酯作为卡宾前体,还发现了在铑催化下 Boc 基团从 N 到 C 的新型 1,4-重排。