1,5-Dimethyl-1H-pyrazol-3-yl Methanesulfonate
white crystalline solid (mp 88–89 °C) after drying in a vacuum oven:
1H NMR (400 MHz, CDCl3) δ 5.85 (s, 1 H); 3.68 (s, 3 H); 3.25 (s, 3 H), 2.23 (s, 3 H);
13C NMR (100 MHz, CDCl3) δ 152.1, 140.7, 96.3, 37.9, 36.1, 11.3;
HRMS-ESI (m/z) calcd for C6H11N2O3S [M + H]+ 191.0485, found 191.0483.
1H NMR (400 MHz, CDCl3) δ 5.85 (s, 1 H); 3.68 (s, 3 H); 3.25 (s, 3 H), 2.23 (s, 3 H);
13C NMR (100 MHz, CDCl3) δ 152.1, 140.7, 96.3, 37.9, 36.1, 11.3;
HRMS-ESI (m/z) calcd for C6H11N2O3S [M + H]+ 191.0485, found 191.0483.
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