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Volume 3, Issue 4 (Suppl)
Nano Res Appl
ISSN: 2471-9838
November 07-08, 2017 Singapore
International Meeting on
Advanced Nanomaterials and Nanotechnology
Nanomaterials Meetings 2017
November 07-08, 2017
Page 46
Nano Res Appl 2017, 3:4
DOI: 10.21767/2471-9838-C1-006
Heterogenous graphene supported cobalt metal catalyzed dehydrogenation of N-heterocyles
Garima Jaiswal
National chemical laboratory, India
T
he promoterless AD (acceptorless dehydrogenation) reaction with the release of H2 provides promising synthetic routes for
several organic transformation such as alcohol dehydrogenation to carbonyl compounds as aldehydes, ketones, esters, amides,
amine to imine and N- heterocycles dehydrogenation which is synthetically very important. Dehydrogenation of N-heterocyles were
mediated by cobalt heterogenous has been done at atmospheric condition with the liberation of hydrogen which is most atom efficient
way to produce quinoline.
Owing to the increasing demand for environmentally benign synthetic processes, promoterless AAD reactions are desirable.
Conventionally, oxidative dehydrogenation reaction has been performed using stoichiometric or excess amounts of oxidants such
as DDQ, peroxides, iodates, chromium(IV) reagents and metal oxides, that produce large excess of hazardous waste equivalent to
the oxidants which is undesirable environmentally and economically. An alternative to these strong and toxic oxidants is to use
pressurized oxygen air or oxygen which can cause explosion hazards. Removal of dihydrogen atoms from adjacent atomic centers of
organic molecule is highly thermodynamically uphill process. Thus, it would be challenging to explore the catalytic performance of
hetrogenous catalysts for the dehydrogenation of nitrogen heterocycles.
Our interest is in the development of efficient heterogeneous catalyst containing sustainable transition metals, such cobalt for the
dehydrogenation reaction. we have propse first cobalt based heterogenous catalytic system for challanging catalytic dehydrogenation
reactions of nitrogen heterocycles. In this reaction only hydrogen is side product which is good in the context of ‘hydrogen economy’
and is an effective alternative to the classical oxidation reactions
Jaiswalgarima1@gmail.com