Synthesis and Characterization of Transition Metal Methanesulfonates and their Catalytic Behavior in Biginelli Reactions |
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| Authors: | Min?Wang Zhi-Chang?Wang Zhao-Lin?Sun Email author" target="_blank">Heng?JiangEmail author |
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| Institution: | (1) Department of Chemistry, School of Sciences, Northeastern University, Shenyang, 110004, P.R. China;(2) Liaoning University of Petroleum & Chemical Technology, Fushun, 113001, P.R. China |
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| Abstract: | A series of transition metal methanesulfonates were prepared and characterized by FTIR and TG. Characteristic peaks for the
methyl and sulfonyl groups were observed in the i.r. spectra. The number of crystal waters and the process of dehydration
and decomposition were determined by TG. The catalytic behavior of transition metal methanesulfonates in Biginelli one-pot
cyclocondensation of aldehydes, 1,3-dicarbonyl compounds and urea in absolute EtOH under refluxing temperatures was investigated.
The products, 3,4-dihydropyrimidinones, were characterized by elemental analysis, 1H n.m.r. and FTIR. The experimental results showed transition metal methanesulfonates were efficient for the Biginelli reaction. |
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