1-Aryl-1,2,3,4-tetrahydroisoquinolines as potential antimalarials: synthesis, in vitro antiplasmodial activity and in silico pharmacokinetics evaluation
Catalytic Pictet–Spengler reactions using Yb(OTf)3
摘要:
The catalytic Pictet-Spengler reactions proceeded in high yields with high regioselectivity in the presence of a catalytic amount of Yb(OTf)(3) and a dehydrating agent at room temperature. High regioselectivities were obtained in these reactions, and it is suggested that the reactions proceeded under kinetic control. (c) 2005 Elsevier Ltd. All rights reserved.
Pictet-Spenglerreactions of m-tyramine and aldehydes producedtetrahydroisoquinolines in the presence of a catalytic amount of Ca[OCH(CF3)2]2. This reaction occurs with a variety of aryl, heteroaryl, and alkyl aldehydes, producingtetrahydroisoquinolines in high yield and with high regioselectivity. This calcium-promoted Pictet-Spenglerreaction provides a mild alternative to the traditional Bronsted
Regioselective bromination of
<scp>6‐hydroxytetrahydroisoquinolines</scp>
作者:Ke Wang、Xuan Pan、Kun Peng、Zhan Z. Liu
DOI:10.1002/jhet.4121
日期:2020.12
Regioselective bromination of 6‐hydroxytetrahydroisoquinolines using molecular bromine was disclosed. Treatment of 6‐hydroxytetrahydroisoquinolines with molecular bromine under different temperatures afforded 5‐bromo‐6‐hydroxytetrahydroisoquinolines as sole products in high isolated yield with excellent regioselectivity.