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Visible‐light‐driven Efficient Photocatalytic Reduction of Organic Azides to Amines over CdS Sheet–rGO Nanocomposite
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2018-01-10 , DOI: 10.1002/asia.201701614
Krishnadipti Singha 1 , Aniruddha Mondal 1 , Subhash Chandra Ghosh 1 , Asit Baran Panda 1
Affiliation  

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.

中文翻译:

CdS Sheet–rGO纳米复合材料上可见光驱动的有机叠氮化物对胺的光催化有效还原

CdS sheet-rGO纳米复合材料作为非均相光催化剂,可以使用水合肼作为还原剂,将可见光诱导的芳族,杂芳族,脂族和磺酰基叠氮化物光催化还原为相应的胺。该反应在没有自光活化偶氮化合物的情况下,对胺的形成显示出优异的转化率和化学选择性。在所采用的策略中,CdS不仅通过叠氮化物的光活化促进了亚硝基的形成,而且在一定程度上增强了叠氮化物的分解,从而完全抑制了偶氮化合物的形成。开发的CdS sheet-rGO纳米复合催化剂非常活泼,在用40 W简易家用CFL灯照射下可提供出色的结果。
更新日期:2018-01-10
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