Convenient synthesis of bis(indolyl)alkanes by dithiocarbohydrazone Schiff base/Zn(ClO4)2·6H2O catalyzed Friedel–Crafts reaction of indoles with imines
Friedel–Crafts reaction of indoles with imines in the presence of dithiocarbohydrazone Schiff base/Zn(ClO4)2·6H2O as a highly stable, effective and readily available catalyst is described. Moderate to good yields (up to 99% yield) were obtained with both substrates for imine derivatives. This procedure is simple, practical and economic.
Correlation studies in the oxidation of Vanillin Schiff bases by acid bromate - A kinetic and semi-empirical approach
作者:T. Sathish、P. Ravi Teja、M. Parusha Ramudu、P. Sunitha Manjari、R. Koteshwar Rao
DOI:10.1016/j.jics.2021.100233
日期:2022.1
Magnesium perchlorate as an efficient catalyst for the synthesis of imines and phenylhydrazones
作者:Asit K. Chakraborti、Srikant Bhagat、Santosh Rudrawar
DOI:10.1016/j.tetlet.2004.08.097
日期:2004.10
Magnesium perchlorate has been found to be an efficient catalyst for the synthesis of imines and phenylhydrazones by the reaction of carbonyl compounds with amines and phenylhydrazine in high yields at room temperatures and in short times. The condensation of less electrophilic carbonyl compounds with poorly nucleophilic amines affords the imines in excellent yields. (C) 2004 Elsevier Ltd. All rights reserved.
Rai,M. et al., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1977, vol. 15, p. 848 - 849