@article { ISI:000286902200016, title = {One-pot synthesis of 2,4,5-trisubstituted imidazoles using MoO3/SiO2, an efficient and recyclable catalyst}, journal = {Synthetic Communications}, volume = {41}, number = {5}, year = {2011}, month = {JAN}, pages = {PII 932996516}, publisher = {TAYLOR \& FRANCIS INC}, address = {325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA}, abstract = {

[image omitted] A simple one-pot synthesis has been developed for the synthesis of 2,4,5-trisubstituted imidazoles using an efficient and recyclable MoO3/SiO2 solid acid catalyst by condensation of benzil or benzoin, benzaldehyde, and ammonium acetate in acetonitrile as a solvent. Using this solid catalyst, the reactions could be carried out under mild reaction conditions with very good yield of imidazoles, up to 95\%. This catalyst could be recycled very easily, which makes this methodology environmentally benign.

}, keywords = {benzil, benzoin, cyclocondensation, imidazoles, MoO3, One-pot, SiO2, solid acid}, issn = {0039-7911}, doi = {10.1080/00397911003644415}, author = {Bhosale, Sidhanath V. and Kalyankar, Mohan B. and Nalage, Santosh V. and Bhosale, Dattatry S. and Pandhare, Swati L. and Kotbagi, Trupti V. and Shubhangi B. Umbarkar and Dongare, Mohan K.} } @article { ISI:000323020400047, title = {One-pot migration-formylation of benzyl aryl ethers under duff reaction condition}, journal = {Tetrahedron Letters}, volume = {54}, number = {35}, year = {2013}, month = {AUG}, pages = {4789-4792}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

A one-pot migration-formylation of benzyl aryl ethers under Duff reaction condition is described. The reaction was performed with HMTA (hexamethylene tetramine) and TFA (trifluoroacetic acid). Under the optimal reaction conditions, a variety of Bn and PMB ethers underwent ortho rearrangement. (C) 2013 Elsevier Ltd. All rights reserved.

}, keywords = {Benzyl aryl ethers, Duff reaction, Hexamethylene tetramine, One-pot, ortho Rearrangement}, issn = {0040-4039}, doi = {10.1016/j.tetlet.2013.06.133}, author = {Chavan, Subhash P. and Lasonkar, Pradeep B.} } @article {49813, title = {One-pot tandem oxidative-wittig olefination of primary alcohols using spent battery material as a heterogeneous catalyst in green solvent GVL}, journal = {Catalysis Letters}, volume = {156}, year = {2026}, month = {JAN}, pages = {44}, type = {Article}, abstract = {

Extensive global utilization of dry cell batteries resulted in generation of huge amount of battery waste. Up-cycling of spent battery waste material as a heterogeneous catalyst is an emerging area of research. Cathode material from spent dry cell battery (Zinc-carbon) was isolated, acid leached and calcined to obtain BCM-2 which was used as a heterogeneous catalyst for one-pot tandem oxidative-Wittig olefination in \& upsih;-valerolactone (GVL) a bio-based green solvent at a temperature of 50 degrees C. Reaction was found to proceed smoothly using an economical catalyst and environment friendly conditions to get olefins in good yield up-to 74\%. The catalyst was found to be reusable for four cycles. The reaction was carried out two-steps in one pot using spent battery material as a catalyst in GVL as a solvent under mild reaction conditions and the applicability of catalyst was shown in 13 examples. The catalyst{\textquoteright}s effectiveness was also assessed in synthesis of (E)-3, 4 {\textquoteleft}, 5-trimethoxy-trans-stilbene, an intermediate for biologically active Resveratol.

}, keywords = {One-pot, Oxidation, Spent battery, Wittig olefination}, issn = {1011-372X}, doi = {10.1007/s10562-025-05283-3}, author = {Bankar, Shubham R. and Ghadge, Sambhaji S. and Jadhav, Vrushali H.} }