NDLI: Facile production of vitamin B3 and other heterocyclic carboxylic acids using an efficient Ag/ZnO/graphene-Si hybrid nanocatalyst

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Facile production of vitamin B3 and other heterocyclic carboxylic acids using an efficient Ag/ZnO/graphene-Si hybrid nanocatalyst

Content Provider	Semantic Scholar
Author	Attia, Yasser A. Vázquez, Carlos Vázquez Mohamed, Yasser M. A.
Copyright Year	2016
Abstract	High yield of vitamin B3 is produced using Ag/ZnO/graphene nanocomposite (1 wt%) as a nanocatalyst after its activation by a silicon precursor such as trimethylsilyl chloride(TMSCl) or tert-butyldimethylsilyl chloride (TBSCl) under visible light. TBSCl has been proved as more efficient activating agent than TMSCl in the oxidation of heterocyclic alcohol derivatives to afford their corresponding carboxylic acids. 3-Pyridinemethanol was selected to be a model substrate to test the ability of Ag/ZnO/graphene-Si nanocatalysts. The oxidation reaction of alcohols was completed in short reaction time (30–60 min) at ambient condition to yield vitamin B3 and other heterocyclic carboxylic acids in excellent yields (86–99 %). A catalytic oxidation mechanism that is based on the generation of highly active catalytic oxidation species (oxygen radicals) has been proposed. The utility of this inexpensive and recyclable catalytic system without using molecular oxygen or any oxidants make this procedure interesting from a green chemistry point of view.Graphical Abstract
Starting Page	203
Ending Page	218
Page Count	16
File Format	PDF HTM / HTML
DOI	10.1007/s11164-016-2615-7
Volume Number	43
Alternate Webpage(s)	https://scholar.cu.edu.eg/?q=yattia/files/8-_research_on_chemical_intermediate-vitamin_b3.pdf
Alternate Webpage(s)	https://doi.org/10.1007/s11164-016-2615-7
Journal	Research on Chemical Intermediates
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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