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deprotection-reaction
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N-benzyl-DABCO-tribromide as an efficient and mild reagent for deprotection of dithioacetals
, Article Synthetic Communications ; Volume 36, Issue 8 , 2006 , Pages 1093-1096 ; 00397911 (ISSN) ; Boeini, H. Z ; Zargarani, D ; Bardajee, G. R ; Sharif University of Technology
2006
Abstract
N-Benzyl-DABCO-ammonium tribromide was found to be an efficient and recyclable reagent for the deprotection of dithioacetals in dichloromethane/ methanol at room temperature. The reaction can be performed cleanly, in short time, and in high yield. Copyright © Taylor & Francis Group, LLC
A cheap, simple, and versatile method for acetylation of alcohols and phenols and selective deprotection of aromatic acetates under solvent-free condition
, Article Synthetic Communications ; Volume 35, Issue 3 , 2005 , Pages 483-491 ; 00397911 (ISSN) ; Saidi, M. R ; Sharif University of Technology
2005
Abstract
Acyclic and cyclic acetates of various alcohols and phenols were obtained in excellent yields under mild reaction conditions in the presence of a catalytic amount of sodium hydroxide under solvent-free conditions and microwave irradiation. Selective deprotection of acetate group from the corresponding phenolic compounds was carried out in the presence of LiClO4· 2H2O. Copyright © Taylor & Francis, Inc
The structure, magnetism and EPR spectra of a (μ-thiophenolato)(μ-pyrazolato-N,N′) double bridged dicopper(II) complex
, Article Dalton Transactions ; Volume 44, Issue 5 , Dec , 2015 , Pages 2431-2438 ; 14779226 (ISSN) ; Boghaei, D. M ; Assoud, A ; Nascimento, O. R ; Nicotina, A ; Ghivelder, L ; Calvo, R ; Sharif University of Technology
Royal Society of Chemistry
2015
Abstract
A new binuclear copper(ii) complex, namely [Cu2L(pz)(DMSO)], where L = 2,6-bis[(2-phenoxy)iminomethyl]-4-methylthiophenolate(3-) and pz = pyrazolate ligand, has been synthesized by a one-pot synthesis involving copper(ii) acetate monohydrate, the S-protected ligand precursor 2-(N,N-dimethylthiocarbamato)-5-methylisophthalaldehyde di-2′-hydroxy anil, (I), and pyrazole, in which a metal-promoted S-deprotection reaction occurs during the formation of the complex. This was characterized by routine physicochemical studies, single crystal X-ray diffraction and electron paramagnetic resonance (EPR) techniques. The structure analysis reveals that there are copper centres in two different...
An efficient one-pot synthesis of 1-aminophosphonates
, Article Synthesis (Germany) ; Volume 55, Issue 1 , Volume 55, Issue 1 , 2022 , Pages 121-130 ; 00397881 (ISSN) ; Faghih, S ; Alavi, S ; Naimi Jamal, M. R ; Fattahi, A ; Sharif University of Technology
Georg Thieme Verlag
2022
Abstract
1-Aminophosphonates are valuable compounds with wide range of applications in biological and industry. Various reaction conditions and catalysts have been reported for the synthesis of 1-aminophosphonates via three-component (dialkyl phosphite + aldehyde + amine) or two-component reaction (dialkyl phosphite + imine). Here a solvent-free synthesis of 1-aminophosphonates under very mild reaction conditions is reported. The three-component condensation reactions of dialkyl phosphite, carbonyl compound, and an amine gave 1- aminophosphonates in good to excellent yields under solvent- and catalyst-free conditions at ambient temperature. Hydrophosphorylation of imines in the presence of dialkyl...