tert-Butyl N-(2-((methylsulfonyl)oxy)ethyl)carbamate → 2-(3-(2-Methoxy-4-nitrophenyl)-1H-pyrazol-1-yl)ethanamine

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Reaction Steps

The title compound was prepared from 5-(2-Methoxy-4-nitrophenyl)-1H-pyrazole (1.00 g) and 2-(tert-butoxycarbonylamino)ethyl methanesulfonate (1.42 g) using the method of Example 37(c). Yield 0.24 g (as HCl-salt). 1H-NMR (400 MHz; d6-DMSO): δ 3.32 (t, 2H), 4.02 (s, 3H), 4.47 (t, 2H), 6.94 (d, 1H), 7.88-7.93 (m, 3H), 8.12 (br s, 2H), 8.22 (d, 1H).

Provenance & Evidence