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An effective Pd nanocatalyst in aqueous media: stilbene synthesis by Mizoroki–Heck coupling reaction under microwave irradiation
(Beilstein-Institut, 2017-08)
Aqueous Mizoroki–Heck coupling reactions under microwave irradiation (MW) were carried out with a colloidal Pd nanocatalyst stabilized with poly(N-vinylpyrrolidone) (PVP). Many stilbenes and novel heterostilbenes were ...
Micellar-Improved Synthesis of bis-Quaternary Ammonium Salts by the Epichlorohydrin Route
(Springer Heidelberg, 2003-12)
A convenient procedure for the synthesis of bis-quaternary ammonium salts from long-chain alkyldimethylamines and epichlorohydrin is studied. An improved preparation of bis-quaternary ammonium salts from N,N-dimethyloctylamine, ...
Aqueous Barbier allylation of aldehydes mediated by tin
(Brasil, 2007)
The aqueous tin-mediated Barbier reaction affords good to excellent yields and moderate syn diastereoselectivity under basic and acidic conditions. The high yields and stereoselectivity observed in the case of o-substituted ...
Water as an Eco-friendly Solvent for Iodination Reactions of Aromatic and Heteroaromatic Compounds
(Bentham Science Publ Ltd, 2013-04-01)
In this review article we have gathered relatively recent publications involving modern methodologies for iodination reactions of aromatic and heteroaromatic compounds using pure water or mixtures containing water as ...
4-amine-2-mercaptopyrimidine modified silica gel applied in Cd(II) and Pb(II) extraction from an aqueous medium
(Versita, 2010-01-01)
This paper discusses silica surface modification by a process involving a two-step reaction: anchoring of a silylating agent, followed by an attachment of a 4-amino-2-mercaptopyrimidine molecule. The modified material ...
4-amine-2-mercaptopyrimidine modified silica gel applied in Cd(II) and Pb(II) extraction from an aqueous medium
(Versita, 2010-01-01)
This paper discusses silica surface modification by a process involving a two-step reaction: anchoring of a silylating agent, followed by an attachment of a 4-amino-2-mercaptopyrimidine molecule. The modified material ...
Addition of carbon nucleophiles to cyclic N-acyliminium ions in SDS/water
(Pergamon-elsevier Science LtdOxfordInglaterra, 2004)
Electrochemical synthesis of palladium nanoparticles in PVP solutions and their catalytic activity in Suzuki and Heck reactions in aqueous medium
(Royal Society of Chemistry, 2014-02)
Small palladium nanoparticles (PdNPs) with large-surface area were synthesized in aqueous media in the presence of poly(N-vinylpyrrolidone) (PVP) using a simple electrochemical method. Electroreduction of Pd(II) species ...
Phosphine-free Suzuki cross-coupling reaction using an efficient and reusable Pd catalyst in an aqueous medium under microwave irradia
(2015-06-17)
We report here an improved, highly efficient, and general method for the ligand-free Suzuki cross-coupling reaction to the synthesis of biaryls, bipyridyls, thienylpyridine, and allylphenols. Microwave irradiation of ...