Publication Type : Journal Article
Publisher : Volume 127
Source : Volume 127, Issue 9, p.1539 - 1545 (2015)
Url : https://doi.org/10.1007/s12039-015-0919-6
Campus : Coimbatore
School : School of Engineering
Department : Sciences
Year : 2015
Abstract : Synthesis of three Brnsted acid-based ionic liquids, namely, 1-ethyl-1,2,4-triazolium triflate (1a), 1-propyl-1,2,4-triazolium triflate (1b) and 1-butyl-1,2,4-triazolium triflate (1c), is described. These ionic liquids have been employed as catalysts for convenient and high-yielding one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones and 3,4-dihydropyrimidin-2(1H)-thiones, which are Biginelli reaction products. Advantages of the methodology are operational convenience, short reaction times, avoidance of chromatographic purification and non-production of toxic waste. Further, the catalysts are easily recovered and reused without any noticeable diminution in their catalytic activity.
Cite this Research Publication : S. Nagarajan, SHAIKH, T. A. N. V. E. E. R. M., and Dr. Elango K., “Synthesis of 1-alkyl triazolium triflate room temperature ionic liquids and their catalytic studies in multi-component Biginelli reaction”, vol. 127, no. 9, pp. 1539 - 1545, 2015.