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- [45] Fe(HSO4)3 as an efficient catalyst for the preparation of 3,4-dihydropyrimidin-2(1H)-ones in solution and under solvent-free conditions Journal of the Iranian Chemical Society, 2008, 5 : 96 - 99
- [46] Chemoselective synthesis of 1,1-diacetates from aldehydes in the presence of Al(HSO4)3 under mild solvent-free conditions Russian Journal of Organic Chemistry, 2007, 43 : 852 - 854