@article { ISI:000229066500020,
	title = {Transesterification of diethyl oxalate with phenol using MoO3/SiO2 catalyst},
	journal = {Applied Catalysis A-General},
	volume = {285},
	number = {1-2},
	year = {2005},
	month = {MAY},
	pages = {190-195},
	publisher = {ELSEVIER SCIENCE BV},
	type = {Article},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>Transesterification of diethyl oxalate (DEO) with phenol to form diphenyl oxalate (DPO) has been carried out in liquid phase using MoO3/ SiO2 solid acid catalyst with high conversion and 100\% selectivity. A series Of MoO3/SiO2 catalysts with different Mo loadings (1-20 wt\%) were prepared using sol-gel technique and characterized using X-ray diffraction analysis (XRD), BET specific surface area, temperature-programmed desorption (TPD) of ammonia, and FTIR spectroscopic analysis of adsorbed pyridine. XRD analysis revealed the amorphous nature of the catalyst up to 10 wt\% MoO3 loading and the formation of crystalline α-MoO3 phase on amorphous silica support with higher MoO3 loading. BET surface area showed high surface area for catalysts prepared by sol-gel technique with lower MoO3 content; the surface area decreases with increasing MoO3 loading. Ammonia TPD shows much higher acid strength compared to the catalysts prepared by impregnation technique. Among the series of catalysts prepared, MoO3/SiO2 containing 1 wt\% MoO3 was found to be the most active catalyst for transesterification reaction, with a maximum DEO conversion of 80.9 and 100\% selectivity for DPO. The effects of reaction temperature and catalyst concentration on conversion and product selectivity have been investigated. {\textcopyright} 2005 Elsevier B.V. All rights reserved.</p>},
	keywords = {diethyl oxalate, diphenyl oxalate, MoO3/SiO2, sol-gel technique, transesterification},
	issn = {0926-860X},
	doi = {10.1016/j.apcata.2005.02.028},
	author = {Biradar, Ankush V. and Shubhangi B. Umbarkar and Dongare, Mohan K.}
}
