abstract
Ionic polymolybdate compounds (IPOM) possessing the anions [Mo8O26]4- and [Mo3O10]2-, and cyclohexylammonium (Cy6N) or anilinium (Anil) as organic cations, namely cyclohexylammonium beta-octamolybdate dihydrate (1), cyclohexylammonium trimolybdate hydrate (2), anilinium beta-octamolybdate dihydrate (3), anilinium trimolybdate tetrahydrate (4) and anilinium trimolybdate dihydrate (5), were synthesized via simple, eco-friendly one-pot routes. New crystal structures of 1, 2 and 5 were discovered. IPOM compounds with different structural dimensionality, density and ratio of the number of terminal oxo groups/molybdenum atoms (n(oxo)/Mo) were developed. The IPOM compounds promoted the epoxidation of biobased olefins such as the fatty acid methyl esters methyl oleate and methyl linoleate with tert-butylhydroperoxide as oxidant, leading to conversions of at least 81% at 4 h, 70 degrees C and the corresponding epoxides. The reaction scope of applications for the IPOM catalysts covered cyclooctane oxidation.
keywords
TERT-BUTYL HYDROPEROXIDE; OLEFIN EPOXIDATION; HYDROGEN-PEROXIDE; COMPLEXES; OCTAMOLYBDATE; ACID
subject category
Chemistry
authors
Neves, P; Simoes, G; Napruszewska, BD; Pamin, K; Serda, P; Lasocha, W; Valente, AA
our authors
Anabela Tavares Aguiar Valente
Principal Researcher
Patrícia dos Santos Neves
Assistant Researcheracknowledgements
The authors are grateful to the mentioned funders.