M. Martins, R. Blanco, C. Pereira
Dec 1, 2002
Citations
0
Influential Citations
17
Citations
Journal
Journal of Fluorine Chemistry
Abstract
Abstract The one-pot synthesis of nine novel 5-trifluoromethyl-1,2-dimethyl-1H-pyrazolium chlorides 2 from the cyclocondensation of 4-alkoxy-1,1,1-trifluoro-3-alken-2-ones 1 [CF3C(O)CH=C(R1)OR, where R1=H, Me, n-Pr, n-Hex, Ph, 4-Me-C6H4, 4-F-C6H4, 4-Cl-C6H4, 4-NO2-C6H4, and R=Me, Et] with 1-2-dimethyl hydrazine, in quantitative yields, is reported. The 1 H , 13 C , 19 F and 35 Cl NMR chemical shifts of compounds 2 also are described.