نتایج جستجو برای: 4 arylmethylenebis1h pyrazol 5 ols
تعداد نتایج: 2068383 فیلتر نتایج به سال:
Six novel chloro-containing 1-aryl-3-oxypyrazoles TMa-TMf with an oximino ester or an oximino amide moiety were prepared by the reaction of 1-aryl-1H-pyrazol-3-ols with benzyl bromide. Their structures were characterized by 1H-NMR, 13C-NMR, IR, MS, and elemental analysis. A preliminary in vitro bioassay indicated that compounds TMa, TMe and TMf displayed excellent fungicidal activity against Rh...
Pd/C-mediated alkynylation of 5-iodo-pyrazole-4-carboxylic acid, involving the first regioselective construction of α-pyrone ring on a pyrazol moiety via tandem coupling-cyclization process, has been developed to afford pyrano[4,3-c]pyrazol-4(1H)-one in a single pot.
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