Metal-Free Synthesis of 2,4,6-Trisubstituted Pyridines via Iodine-Initiated Reaction of Methyl Aryl Ketones with Amines under Neat Heating
作者:Ze Zhang、Hui Xu、Ji-Chao Zeng、Fang-Jian Wang
DOI:10.1055/s-0036-1588380
日期:——
HI-catalyzed) condensation of methyl aryl ketones with amines and the following cyclization-aerobic oxidation. Large-scale synthesis and mechanistic investigation were also performed. A neat heating protocol has been developed for metal-free synthesis of various 2,4,6-trisubstituted pyridines via iodine-initiated (in situ generated HI-catalyzed) condensation of methyl aryl ketones with amines and the following
Merrifield resin-supported quinone as an efficient biomimetic catalyst for metal-free, base-free, chemoselective synthesis of 2,4,6-trisubstituted pyridines
作者:Qing Yang、Yilin Zhang、Wei Zeng、Zheng-Chao Duan、Xinxin Sang、Dawei Wang
DOI:10.1039/c9gc02409c
日期:——
(EDX). This supported quinone catalyst exhibited excellent catalytic reactivity for chemoselective synthesis of 2,4,6-trisubstitutedpyridines, providing an efficient and green method for the synthesis of pyridinederivatives under mild conditions. Mechanistic investigations were conducted to gain insights into the heterogeneous biomimetic catalyst as well as the resulting transformation. The successful