l-(+)-Tartaric acid and choline chloride based deep eutectic solvent: An efficient and reusable medium for synthesis of N-substituted pyrroles via Clauson-Kaas reaction
作者:Ping Wang、Fei-Ping Ma、Zhan-Hui Zhang
DOI:10.1016/j.molliq.2014.07.015
日期:2014.10
l-(+)-Tartaric acid–choline chloride based deep eutectic solvent has been found to be an effective promoted medium for Clauson-Kaas reaction of aromatic amines and 2,5-dimethoxytetrahydrofuran. Structurally diverse N-substituted pyrroles were obtained in high to excellent yields under mild conditions. The deep eutectic solvent is inexpensive, non-toxic, reusable and biodegradable.
已经发现,基于1 -(+)-酒石酸-氯化胆碱的低共熔溶剂是促进芳香胺和2,5-二甲氧基四氢呋喃的Clauson-Kaas反应的有效促进介质。在温和条件下以高产率至优异产率获得结构多样的N-取代的吡咯。该深共晶溶剂便宜,无毒,可重复使用且可生物降解。