1,5-Dimethyl-1H-pyrazol-3-yl Methanesulfonate

 

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.

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