Lewis acid catalysis in organic synthesis
type: CreativeWork
description: "Gadolinium triflate (Gd(OTf)₃) was found to be a simple and efficient catalyst for the acetylation of alcohols and amines in both conventional organic solvents and as well as in room temperature ionic liquids (TRIL). Acetylation reactions using acetic anhydride as the reagent proceed in excellent yields, in the presence of catalytic amounts (0.01 - 0.5 mol %) of Gd(OTf)₃, at ambient temperature. Acetylations of variety of aliphatic alcohols as well as phenols and amines were proceeded under mild conditions...A novel and efficient catalytic system has been developed for 1,3-dipolar cycloaddition of azides to terminal alkynes using CuCl-RTIL. This catalytical system gives only 1,4-disubstituted 1,2,3-triazoles. Reactions of Alkyl and aryl azides with a variety of terminal alkynes were successfully catalyzed using CuCl-RTIL catalytic system. This catalytic system has the additional characteristics includes simple product isolation, insensitivity to air and moisture, and tolerance to broad range of functional groups"--Abstract, page iii.
abstract: "Gadolinium triflate (Gd(OTf)₃) was found to be a simple and efficient catalyst for the acetylation of alcohols and amines in both conventional organic solvents and as well as in room temperature ionic liquids (TRIL). Acetylation reactions using acetic anhydride as the reagent proceed in excellent yields, in the presence of catalytic amounts (0.01 - 0.5 mol %) of Gd(OTf)₃, at ambient temperature. Acetylations of variety of aliphatic alcohols as well as phenols and amines were proceeded under mild conditions...A novel and efficient catalytic system has been developed for 1,3-dipolar cycloaddition of azides to terminal alkynes using CuCl-RTIL. This catalytical system gives only 1,4-disubstituted 1,2,3-triazoles. Reactions of Alkyl and aryl azides with a variety of terminal alkynes were successfully catalyzed using CuCl-RTIL catalytic system. This catalytic system has the additional characteristics includes simple product isolation, insensitivity to air and moisture, and tolerance to broad range of functional groups"--Abstract, page iii.
author: Alleti, Ramesh
keywords: Gadolinium triflate, Michael additons, Chemistry
date published: 2016-02-10T08:00:00Z
date modified: 2026-07-24T03:20:12Z
provider: Missouri University of Science and Technology
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Missouri--Rolla