作者:Ganesamoorthy Thirunarayanan、Krishnamoorthy Guna Sekar
DOI:10.5012/jkcs.2013.57.5.599
日期:2013.10.20
N-acetyl pyrazoles including 1-(3-(3,4-dichlorophenyl)-5-(substituted phenyl)-4,5-dihydro- 1 H-pyrazole- 1-yl) ethanones have been synthesised by solvent free cyclization cum acetylation of chalcones like substituted styryl 3,4- dichlorophenyl ketones using hydrazine hydrate and acetic anhydride in presence of catalytic amount of fly-ash: H2SO4 catalyst. The yield of these N-acetyl pyrazole derivatives
通过无溶剂环化合成了一些N-乙酰基吡唑,包括1-(3-(3,4-二氯苯基)-5-(取代的苯基)-4,5-二氢-1 H-吡唑-1-基)乙酮。在催化量的粉煤灰:H2SO4催化剂存在下,使用水合肼和乙酸酐对查尔酮类(如取代的3,4-二氯苯基苯乙烯基酮)进行乙酰化。这些N-乙酰基吡唑衍生物的产率超过75%。合成的N-乙酰基吡唑啉衍生物具有物理常数和光谱数据特征