Article info.

ABSTRACT

Received 25 Nov 2017
Revised 20 Dec 2017

Accepted 20 Jul 2018

Superparamagnetic copper ferrite nanoparticles were utilized as a recyclable heterogeneous catalyst for the cross-dehydrogenative coupling of N,N-disubstituted formamides with phenols. This routine allowed the creation of a hybrid benzothiazole-carbamate moiety under heterogeneous catalysis. These products possess both carbamate and benzothiazole moieties, thus taking profits from both structures with regard to pharmaceutical and biological activities.  Employing a catalytic portion of thesuperparamagneti cnanoparticles, hybrid benzothiazole-carbamate structures could be produced with reasonable yields within 2 hrs. It was  possible to recover the nanoparticles by simple magnetic separation, and reutilize them for the reaction without a significant decline in catalytic efficiency.

Keywords

Carbamates, formamides, nanocatalysis, nanoparticles, phenols

Cited as: Chung, N.K., Kien, T.N., Giao, D.H., Dung, L.T. and Nam, P.T.S., 2018. Superparamagnetic nanoparticles as a recyclable heterogeneous catalyst for the direct synthesis of carbamates containing biothiazole moiety. Can Tho University Journal of Science. 54(5): 52-58.