@article {48458,
	title = {Imine oxidation catalyzed by zinc hydroxyapatite: kinetic studies},
	journal = {ChemistrySelect},
	volume = {8},
	year = {2023},
	month = {MAY},
	pages = {e202203503},
	type = {Article},
	abstract = {<p>
	The synthesis of N,N-diphenylformamide from N-benzylideneaniline and urea hydrogen peroxide is investigated using a zinc hydroxyapatite (ZnHAP) catalyst. It was found that the catalyst resulted in the highest activity of 91 \% conversion and 40 \% selectivity at 130 degrees C in 2 h. A kinetic model was validated by Langmuir-Hinshelwood-Hougen-Watson (LHHW) at different temperatures and the absence of mass transfer resistance was proved by the Weisz Prater criterion. Effect of different catalysts, catalyst loading, temperature, mole-ratio, and speed of stirring was studied. The as-synthesized catalyst is characterized by FTIR, BET nitrogen adsorption-desorption, TEM, EDX, TPD-NH3, XPS, ICP-MS and XRD. ZnHAP catalyst was found to be stable up to three recycles with no loss in activity.</p>
},
	keywords = {heterogeneous catalysis, hydroxyapatite, imines, Oxidation, Reaction kinetics},
	issn = {2365-6549},
	doi = {10.1002/slct.202203503},
	author = {Vishwakarma, Rakhi and Vinod, C. P. and Rathod, Virendra K. and Kantam, Mannepalli Lakshmi}
}
@article {48491,
	title = {Wadsworth-emmons reaction by using the fluorapatite catalyst: kinetic studies},
	journal = {Industrial \& Engineering Chemistry Research},
	volume = {62},
	year = {2023},
	month = {MAY },
	pages = {7901-7911},
	type = {Article},
	abstract = {<p>
	Wadsworth-Emmons reaction was successfully carriedout byusing the fluorapatite (FAP) catalyst. The reaction of 2-methoxybenzaldehydeand triethylphosphonoacetate using FAP afforded \&amp; alpha;,\&amp; beta;-unsaturatedester with 100\% conversion and 80\% selectivity. A kinetic model wasvalidated at different temperatures by Langmuir-Hinshelwood-Hougen-Watson(LHHW), and the absence of mass transfer resistance was verified bythe Weisz Prater criterion. The effect of different catalysts, temperature,catalyst loading, solvent, mole ratio, and speed of stirring was studied.The FAP catalyst was characterized by Fourier transform infrared spectroscopy,Brunauer-Emmett-Teller method, nitrogen adsorption-desorption,transmission electron microscopy, energy-dispersive X-ray spectroscopy,temperature programmed desorption (TPD-NH3), X-ray diffraction,and X-ray photoelectron spectroscopy. The FAP catalyst was found tobe stable up to three recycles with no loss in activity.</p>
},
	issn = {0888-5885},
	doi = {10.1021/acs.iecr.3c00407},
	author = {Vishwakarma, Rakhi and Vinod, Chathakudath P. and Rathod, Virendra and Kantam, Mannepalli Lakshmi}
}
