@article { ISI:000365445500001,
	title = {Water-promoted diels-alder reaction in quaternary ammonium salts},
	journal = {Journal of Physical Organic Chemistry},
	volume = {28},
	number = {11},
	year = {2015},
	month = {NOV},
	pages = {665-673},
	publisher = {WILEY-BLACKWELL},
	address = {111 RIVER ST, HOBOKEN 07030-5774, NJ USA},
	abstract = {<p>{Prevailing classification of salts based on their effect in solubility and stability of proteins in aqueous solution predicts that tetraalkylammonium salts, guanidinium chloride (GnCl), LiClO4 act as salting-in (S/I) and LiCl, NaCl act as salting-out (S/O) in aqueous conditions. In the same context the behaviour of GnCl, LiClO4 and LiCl are contradictory in polar solvents like ethylene glycol and formamide. In these solvents, expected salt effect shows just opposite nature from their usual expectation. However, in the aqueous solution salts like tetraalkylammonium halide (R4NX</p>},
	keywords = {Delta G(solvation), Diels-Alder reaction, k(s), kinetic study, solubility, tetraalkylammonium salts, viscosity},
	issn = {0894-3230},
	doi = {10.1002/poc.3469},
	author = {Nagare, Amit S. and Manna, Arpan and Sonawane, Pramod D. and Kumar, Anil}
}
@article {47091,
	title = {Sulfonic acid-functionalized heterogeneous catalytic materials for efficient biodiesel production: a review},
	journal = {Journal of Environmental Chemical Engineering},
	volume = {9},
	year = {2021},
	month = {FEB},
	pages = {104719},
	type = {Review},
	abstract = {<p>The development of social productive forces leads to the increasing consumption of fossil fuels. However, the burning of traditional fossil fuels releases huge amounts of carbon emissions into the atmosphere, resulting in drastically increased global surface temperatures, and hence, global warming and abnormal climate change. Biodiesel, which can be produced by (trans)esterification of bio-oils using solid acid catalysts, is recognized as renewable and clean energy, alternative to fossil-derived diesel, and it can meet society{\textquoteright}s requirements. This review describes the catalytic conversion of bio-derived oils into biodiesel using various sulfonic acid-functionalized heterogeneous catalytic materials that show higher catalytic efficiency and superior recyclability. Besides, various methods of biodiesel preparation and the appropriate design and preparation of robust and efficient catalytic materials for biodiesel production were provided. Finally, the mechanisms of different catalytic esterification and transesterification reactions for biodiesel synthesis, the relevant reaction kinetic models, and techno-economic analysis of biodiesel production were critically discussed in this review.</p>
},
	keywords = {(Trans)esterification, Biodiesel, heterogeneous catalysis, kinetic study, solid acid},
	doi = {10.1016/j.jece.2020.104719},
	author = {Tan, Xiang and Sudarsanam, Putla and Tan, Jinyu and Wang, Anping and Zhang, Heng and Li, Hu and Yang, Song}
}
