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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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نویسنده
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safaei-ghomi javad ,shahbazi-alavi hossein ,ziarati abolfazl
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منبع
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scientia iranica - 2018 - دوره : 25 - شماره : 6-C - صفحه:3288 -3294
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چکیده
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An efficient synthesis of 4,4’(phenylmethylene)bis(1hpyrazol5ol)3carboxylates is achieved by one pot pseudo fivecomponent reaction of phenylhydrazine, acetylenedicarboxylates and aromatic aldehydes in the presence ofnanonizr4(po4)6 at 60°c in water. nanonizr4(po4)6 has been characterized by powder xray diffraction (xrd) and scanning electronic microscopy (sem). use of simple and readily available starting materials, excellent yields in short times, reusability of the catalyst, little catalyst loading and simple operational procedures are some of the important features of this protocol.
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کلیدواژه
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multi-component ,water ,pyrazole ,catalyst ,one-pot ,nano-nizr4(po4)6
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آدرس
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university of kashan, faculty of chemistry, department of organic chemistry, iran, university of kashan, faculty of chemistry, department of organic chemistry, iran, university of tehran, school of chemistry, college of science, iran
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Authors
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