Synthesis of Substituted Isoquinolines by Electrophilic Cyclization of Iminoalkynes
作者:Qinhua Huang、Jack A. Hunter、Richard C. Larock
DOI:10.1021/jo020020e
日期:2002.5.1
pyridinecarbaldehydes have been cyclized under very mild reaction conditions in the presence of I(2), ICl, PhSeCl, PhSCl, and p-O(2)NC(6)H(4)SCl to give the corresponding halogen-, selenium-, and sulfur-containing disubstituted isoquinolines and naphthyridines, respectively. This methodology accommodates a variety of iminoalkynes and affords the anticipated heterocycles in moderate to excellent yields. Monosubstituted
Development of a Quinolinium/Cobaloxime Dual Photocatalytic System for Oxidative C–C Cross-Couplings <i>via</i> H<sub>2</sub> Release
作者:Jianbin Li、Chia-Yu Huang、Jing-Tan Han、Chao-Jun Li
DOI:10.1021/acscatal.1c04073
日期:2021.11.19
Designing molecular photocatalysts for potent photochemical reactivities ranks among the most challenging but rewarding endeavors in synthetic photochemistry. Herein, we document a quinoline-based organophotoredox catalyst, 2,4-bis(4-methoxyphenyl)quinoline (DPQN2,4-di-OMe), that could be assembled via the facile aldehyde–alkyne–amine (A3) couplings. Unlike the reported photocatalysts, which impart
A room-temperature protocol to access isoquinolines through Ag(<scp>i</scp>) catalysed annulation of o-(1-alkynyl)arylaldehydes and ketones with NH<sub>4</sub>OAc: elaboration to berberine and palmatine
作者:Virsinha Reddy、Abhijeet S. Jadhav、Ramasamy Vijaya Anand
DOI:10.1039/c4ob02641a
日期:——
A silver catalysed protocol for the synthesis of a wide range of isoquinolines from o-(1-alkynyl)arylaldehydes has been developed under mild conditions and elaborated to the synthesis of berberine and palmatine.
Facile Synthesis of 3-Substituted Isoquinolines Derivatives via Microwave-assisted Tandem Three-component Coupling Cyclization
作者:Long Lin、Qiongyou Wu、Shaowei Huang、Guangfu Yang
DOI:10.1002/cjoc.201100560
日期:2012.5
A novel three‐component reaction of o‐bromobenzaldehyde, terminal alkynes and tert‐butyl amine has been established, which proceeded smoothly to give 3‐substituted isoquinolines in good yields in the presence of palladium/copper catalysts under microwave irradiation.