10367-92-7Relevant academic research and scientific papers
The dual role of ionic liquid BmimBF4, precursor of N-heterocyclic carbene and solvent, in the oxidative esterification of aldehydes
Chiarotto, Isabella,Feroci, Marta,Sotgiu, Giovanni,Inesi, Achille
, p. 8088 - 8095 (2013/08/23)
Room temperature ionic liquid BmimBF4 (1-butyl-3- methylimidazolium tetrafluoroborate) has been utilized in the N-heterocyclic carbene-catalyzed oxidation of aldehydes to yield esters. In the presence of MnO2 as oxidant and of DBU and caesium carbonate as bases, aromatic, heteroaromatic and aliphatic esters have been isolated in good to excellent yields. The recyclability of the used ionic liquid along with the excess of inorganic reagents has been proved. The simple and cheap BmimBF4 ionic liquid played the dual role of precatalyst and solvent. This is the first time that such a reaction has been carried out with an ionic liquid as solvent.
NOVEL CO-INITIATORS
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Page/Page column 33, (2008/12/05)
A novel co-initiator is disclosed characterized in that said CO- initiator has a structure according to Formula I wherein B represents a structural moiety comprising at least two aliphatic tertiary amines; L represents a divalent linking group positioning the nitrogen atom of the aromatic amine and the nitrogen of at least one aliphatic amine of the structural moiety B in a 1-9 to 1-23 position; with the proviso that at least one aromatic and at least two aliphatic amine each have an alf a-hydrogen.
