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Efficient deprotection of phenol methoxymethyl ethers using a solid acid catalyst with Wells-Dawson structure
(MDPI (Multidisciplinary Digital Publishing Institute), 2001)
Efficient deprotection of phenol methoxymethyl ethers using a solid acid catalyst with Wells-Dawson structure
(Molecular Diversity Preservation International, 2001-11-30)
Deprotection of various phenols from their respective methoxymethyl ethers using an heteropolyacid catalyst was studied. The catalyst was the Wells-Dawson heteropolyacid, used both in bulk or supported on silica. Yields ...
Synthesis of B- and P-heterocycles by reaction of cyclic acetals and ketals with borinium and phosphonium ions
(Amer Chemical SocWashingtonEUA, 1999)
Multiple rights, the same deprotection: the simbolic efficiency of the indigenous women displaced rights in ColombiaMúltiples derechos, la misma desprotección: la eficacia simbólica de los derechos de las mujeres indígenas desplazadas en ColombiaMúltiplos direitos, a mesma desproteção: a eficácia simbólica dos direitos das mulheres indígenas deslocadas na Colômbia
(Universidad del Rosario, 2012)
This article explores the difficulties in protecting the rights of displaced indigenous women in the context of legal pluralism that are subject and the symbolic effectiveness that involve these multiple orders for them. ...
Galactose-derived poly(amide-triazole)s: Degradation, deprotection and derivatization studies
(Pergamon-Elsevier Science Ltd, 2020-05)
A family of stereoregular poly(amide-triazole)s derived from D-galactose was obtained following several principles of Green Chemistry, namely bio-based starting materials, high yields, benign reaction conditions, energy ...
Efficient method for tetrahydropyranylation/depyranylation of phenols and alcohols using a solid acid catalyst with Wells-Dawson structure
(Pergamon-Elsevier Science Ltd, 2002-10)
A simple and efficient procedure to form 2-tetrahydropyranyl acetals of phenols and alcohols is reported. Wells-Dawson heteropolyacid catalyst is used both in bulk form or supported on silica, reaction conditions include ...
Hydroxythiazole-Based Fluorescent Probes for Fluoride Ion Detection
(WILEY-V C H VERLAG GMBHWEINHEIM, 2012)
This work describes the synthesis of five O-silyloxy-1,3-thiazoles and their use as fast-response turn-on probes for fluoride ion detection in polar aprotic solvents and in aqueous cetyltrimethylammonium bromide micellar ...
Syntheses of 3,4- and 1,4-dihydroquinazolines from 2-aminobenzylamine
(Beilstein-Institut, 2017-06)
A straightforward strategy for the synthesis of dihydroquinazolines is presented, which allows for the preparation of 3,4- and 1,4-dihydroquinazolines with different substitution patterns from 2-aminobenzylamine (2-ABA) ...
Preparação e aplicação de ligantes selenoimínicos quirais em alquilações enantiosseletivas
(Universidade Federal de Santa MariaBrasilQuímicaUFSMPrograma de Pós-Graduação em QuímicaCentro de Ciências Naturais e Exatas, 2005-02-24)
In this work, we describe the synthesis of a new series of chiral-seleno imine 7a-k from amino acids 1. These compounds were used as ligands in palladium-catalyzed asymmetric allylic alkylation of 1,3-diphenyl-2-propenyl ...