A multi-component reaction for the direct access to 4,4'-(phenylmethylene)bis(1H-pyrazol-5-ol)-3-carboxylates using nano-NiZr4(PO4)6 in water
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DOI: 10.24200/sci.2018.20491
Abstract: An efficient synthesis of 4,4'-(phenylmethylene)bis(1H-pyrazol-5-ol)-3-carboxylates is achieved by one pot pseudo five-component reaction of phenylhydrazine, acetylenedicarboxylates and aromatic aldehydes in the presence of nano-NiZr4(PO4)6 at 60°C in water. Nano-NiZr4(PO4)6 has been characterized by powder X-ray… read more here.
Keywords: pyrazol carboxylates; nano nizr4; bis pyrazol; phenylmethylene bis ... See more keywords