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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Tetrahedron Lett. 2010 Sep 1;51(35):4595–4598. doi: 10.1016/j.tetlet.2010.06.074

Table 2.

Synthesis of 2-(3-amino-5-(4-methoxyphenyl)-lH-pyrazol-4-yl)-N,N-diethylacetamide(4).

Entry MAOS Reaction Conditions Temperature Time Yielda
16a No EtOH, acetic acid RT 6 h 72%
26b No EtOH, acetic acid Reflux 4 h 68%
3 Yes EtOH, acetic acid 90 °C 40 min 42%
a

Isolated yield. See reference.6a,6b