An efficient reactions for synthesis of functionalized pyrazoles
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The functionalized pyrazole derivatives produced from the reactions of hydrazonoyl chloride with ethyl 3-oxo-3-phenylpropanoate, acetylacetone, ethyl cyanoacetate, methyl cyanoacetate, or malononitrile in the presence of inexpensive sodium methoxide as base in DMF under catalyst-free condition in good yields.
