@article { ISI:000237725100015,
	title = {Regioselective nitration of cumene to 4-nitro cumene using nitric acid over solid acid catalyst},
	journal = {Catalysis Communications},
	volume = {7},
	number = {6},
	year = {2006},
	month = {JUN},
	pages = {394-398},
	publisher = {ELSEVIER SCIENCE BV},
	type = {Article},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>The regioselective nitration of cumene to 4-nitro cumene (4-NC) has been carried out using 70\% nitric acid over MoO3/SiO2 solid acid catalyst with high conversion (62\%) and selectivity (68\%) for 4-NC. A series of MoO3/SiO2 catalysts with different MoO3 loadings (1-20 mol\%) were prepared by sol-gel technique and characterized using different characterization techniques. XRD analysis revealed the amorphous nature of the catalyst up to 10-mol\% MoO3 loading and formation of alpha-MoO3 crystalline phase on amorphous high surface area mesoporous silica support at higher MoO3 loading. Maximum conversion and selectivity has been obtained with slower addition of nitric acid and simultaneous azeotropic removal of water formed during the reaction. (c) 2006 Elsevier B.V. All rights reserved.</p>},
	keywords = {cumene, nitration, ring nitration, side chain nitration, solid acid catalyst},
	issn = {1566-7367},
	doi = {10.1016/j.catcom.2005.12.022},
	author = {Mathew, Sanyo M. and Biradar, Ankush V. and Shubhangi B. Umbarkar and Dongare, Mohan K.}
}
@article { ISI:000250026200021,
	title = {Synthesis of tinidazole by condensation-oxidation sequence using MoO3/SiO2 bifunctional catalyst},
	journal = {Catalysis Communications},
	volume = {8},
	number = {10},
	year = {2007},
	month = {OCT},
	pages = {1550-1555},
	publisher = {ELSEVIER SCIENCE BV},
	type = {Article},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>Antimicrobial drug, tinidazole has been synthesized by condensation of 2-methyl,5-nitro-imidazole and 2-ethyl-thio-ethanol over MoO3/SiO2 catalyst to obtain 1-(2-ethyl-thio-ethanol)-2-methyl-5-nitro-imidazole which is further oxidized using hydrogen peroxide using the same MoO3/SiO2 catalyst to obtain tinidazole. MoO3/SiO2 catalyst (20\%), synthesized by sol-gel process showed the highest acid strength and was successfully demonstrated to catalyze both condensation and oxidation in the synthesis of tinidazole. Due to the bifunctional activity of the catalyst, the use of acetic acid for condensation step and tungstic acid or ammonium molybdate for oxidation step in the conventional synthesis of tinidazole could be eliminated, thus making it an environmentally benign process. The catalysts could be recycled five times without any appreciable loss in the conversion and selectivity showing the potential for. the use of MoO3/SiO2 as bifunctional catalyst for the production of this industrially important compound. (C) 2007 Elsevier B.V. All rights reserved.</p>},
	keywords = {antimicrobial drug, condensation, MoO3/SiO2, Oxidation, solid acid catalyst, tinidazole},
	issn = {1566-7367},
	doi = {10.1016/j.catcom.2007.01.001},
	author = {Chandorkar, J. G. and Shubhangi B. Umbarkar and Rode, C. V. and Kotwal, V. B. and Dongare, Mohan K.}
}
