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Visible‐light‐driven Efficient Photocatalytic Reduction of Organic Azides to Amines over CdS Sheet–rGO Nanocomposite
Author(s) -
Singha Krishnadipti,
Mondal Aniruddha,
Ghosh Subhash Chandra,
Panda Asit Baran
Publication year - 2018
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201701614
Subject(s) - photocatalysis , hydrazine (antidepressant) , nanocomposite , azide , photochemistry , chemoselectivity , visible spectrum , chemistry , catalysis , decomposition , amine gas treating , nitrene , sulfonyl , materials science , organic chemistry , nanotechnology , alkyl , optoelectronics , chromatography
CdS sheet–rGO nanocomposite as a heterogeneous photocatalyst enables visible‐light‐induced photocatalytic reduction of aromatic, heteroaromatic, aliphatic and sulfonyl azides to the corresponding amines using hydrazine hydrate as a reductant. The reaction shows excellent conversion and chemoselectivity towards the formation of the amine without self‐photoactivated azo compounds. In the adopted strategy, CdS not only accelerates the formation of nitrene through photoactivation of azide but also enhances the decomposition of azide to a certain extent, which entirely suppressed formation of the azo compound. The developed CdS sheet‐rGO nanocomposite catalyst is very active, providing excellent results under irradiation with a 40 W simple household CFL lamp.