Tris(hydroxymethyl)methane ammonium hydrogensulphate as a nano ionic liquid and its catalytic activity in the synthesis of bis(indolyl)methanes
作者:Moones Honarmand、Elaheh Esmaeili
DOI:10.1016/j.molliq.2016.10.136
日期:2017.1
the synthesis of bis(indolyl)methanederivatives at room temperature under solvent-free conditions. Taking the environment and economy into consideration, the work presented here has the merits of environmental friendliness, high yields, simple work-up, easy operation and the avoidance of the organic solvents and inexpensive catalysts. In this work, some bis(indolyl)methanederivatives were synthesized
在这项研究中,三(羟甲基)甲烷硫酸氢铵[(THA)(HSO 4)]是通过在水中的简单化学路线合成的第一种基于纳米脂肪族铵的离子液体。[(THA)(HSO 4)]离子液体通过各种技术进行了表征,例如XRD,SEM,TEM,AFM,1 H NMR,1313 C NMR,FT-IR,MS,TG,DTG和元素分析,并成功地用作环保且可回收的催化剂,在室温下无溶剂条件下合成双(吲哚基)甲烷衍生物。考虑到环境和经济性,这里提出的工作具有环境友好,高收率,后处理简单,易于操作以及避免有机溶剂和廉价催化剂的优点。在这项工作中,首次合成并报道了一些双(吲哚基)甲烷衍生物。
Glycerol as a promoting medium for electrophilic activation of aldehydes: catalyst-free synthesis of di(indolyl)methanes, xanthene-1,8(2H)-diones and 1-oxo-hexahydroxanthenes
作者:Fei He、Peng Li、Yanlong Gu、Guangxing Li
DOI:10.1039/b916015a
日期:——
Glycerol was used, for the first time, as a green and effective promoting medium for electrophilic activation of aldehydes, and with which, a catalyst-free system for some reactions that conventionally carried out using acid catalysts, such as synthesis of di(indolyl)methanes, 3,4,5,6,7,9-hexahydro-9-aryl-1H-xanthene-1,8(2H)-dione and 1-oxo-hexahydroxanthenes, was developed.