Amberlyst-15 in Ionic Liquid: An Efficient and Recyclable Reagent for Nucleophilic Substitution of Alcohols and Hydroamination of Alkenes
作者:Ziyauddin S. Qureshi、Krishna M. Deshmukh、Pawan J. Tambade、Kishor P. Dhake、Bhalchandra M. Bhanage
DOI:10.1002/ejoc.201000456
日期:2010.11
The nucleophilicsubstitutionreaction of secondary alcohols and hydroamination of alkenes with amides, sulfonamides, carbamates, and amines using Amberlyst-15 immobilized in [Bmim][BF 4] (1-butyl-3-methylimidazolium tetrafluoroborate) ionic liquid as an efficient recyclable reagent is described. The solvent effect is prominent in the reaction, and the desired substitution products are obtained in
One-pot synthesis of 1,3-diaryl but-1-enes from 1-arylethanols over Snβ zeolite
作者:Naresh Mameda、Krishna Sai Gajula、Swamy Peraka、Srujana Kodumuri、Durgaiah Chevella、Rammurthy Banothu、Vasu Amrutham、Narender Nama
DOI:10.1016/j.catcom.2016.11.026
日期:2017.2
for the one-potsynthesis of 1,3-diaryl but-1-enes from 1-arylethanols via dehydration of 1-arylethanols followed by head-to-tail dimerization of vinylarenes over heterogeneous catalyst (Snβ zeolite). The scope of the reaction was explored for various 1-arylethanols and afforded the corresponding dimers in good to excellent yields with high regio- and stereoselectivity. Moreover, Snβ zeolite could be