Search results for "Malonate"

showing 2 items of 52 documents

Dimethyl 2-(1-methyl-3-oxo-1,3-dihydroisobenzofuran-1-yl)malonate

2020

In this work we report a facile access to a 3,3-disubstituted isobenzofuranone by tandem addition/cyclization reaction to methyl 2-acetylbenzoate in the presence of dimethyl malonate, under basic conditions.

isobenzofuranoneTandem010405 organic chemistryOrganic Chemistrycascade reactions010402 general chemistry01 natural sciencesBiochemistryDimethyl malonateMedicinal chemistryquaternary carbonlcsh:QD146-1970104 chemical sciencesPhthalidechemistry.chemical_compoundMalonatechemistrylcsh:Inorganic chemistryphthalidePhysical and Theoretical ChemistryQuaternary carbon
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Interaction of methyltin(IV) compounds with carboxylate ligands. Part 1: formation and stability of methyltin(IV)–carboxylate complexes and their rel…

2006

Quantitative data on the stability of mono-, di- and trimethyltin(IV)-carboxylate complexes (acetate, malonate, succinate, malate, oxydiacetate, diethylenetrioxydiacetate, tricarballylate, citrate, butanetetracarboxylate and mellitate) are reported at t=25°C and I → 0 mol l - 1 . Several mononuclear, mixed proton, mixed hydroxo and polynuclear species are formed in these systems. As expected, the stability trend is mono- > di- > trimethyltin(IV) and mono < di < tri < tetra < hexa for the organotin moieties and carboxylate ligands investigated, respectively. Moreover, ligands containing, in addition to carboxylic,-O-and-OH groups show a significantly higher stability with respect to analogou…

methyltin(IV) cationLigandStereochemistryMetal ions in aqueous solutionGeneral ChemistryHEXAMedicinal chemistryInorganic Chemistrymethyltin(IV)–carboxylate complexeschemistry.chemical_compoundMalonatechemistryspeciationStability constants of complexesmethyltin(IV) cationsChemical stabilitySettore CHIM/01 - Chimica AnaliticaCarboxylatemethyltin(IV)–carboxylate complexeBinding sitecarboxylate ligandmethyltin(IV) cations; carboxylate ligands; methyltin(IV)–carboxylate complexes; speciationcarboxylate ligands
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