DEWALD, H. A.;LOBBESTAEL, S.;POSCHEL, B. P. H., J. MED. CHEM., 1981, 24, N 8, 982-987
作者:DEWALD, H. A.、LOBBESTAEL, S.、POSCHEL, B. P. H.
DOI:——
日期:——
BUTLER D. E.; DEWALD H. A., J. ORG. CHEM. <JOCE-AH>, 1975, 40, NO 9, 1353-1355
作者:BUTLER D. E.、 DEWALD H. A.
DOI:——
日期:——
Pyrazolodiazepines. III. 4-Aryl-1,6,7,8-tetrahydro-1,3-dialkylpyrazolo[3,4-e][1,4]diazepines as antidepressant agents
作者:H. A. DeWald、S. Lobbestael、B. P. H. Poschel
DOI:10.1021/jm00140a013
日期:1981.8
Synthesis of substituted 3-phenyl-6<i>h</i>-pyrazolo[4,3-d]isoxazoles from corresponding 4-benzoyl-5-hydroxypyrazoles
作者:Wolfgang Holzer、Katharina Hahn
DOI:10.1002/jhet.5570400216
日期:2003.3
Treatment of 1,(3)-(di)substituted 4-benzoyl-5-hydroxypyrazoles with phosphorus oxychloride affords the corresponding 4-benzoyl-5-chloropyrazoles. Reaction of the latter with hydroxylamine leads to oximes, which can be cyclized to novel 3-phenyl-6H-pyrazolo[4,3-d]isoxazoles by treatment with sodiumhydride in dimethyl formamide. Detailed nmr spectroscopic studies (1H, 13C) with all obtained compounds
用氯氧化磷处理1,(3)-(二)取代的4-苯甲酰基-5-羟基吡唑,得到相应的4-苯甲酰基-5-氯吡唑。后者与羟胺的反应生成肟,可以通过在二甲基甲酰胺中用氢化钠处理将其环化为新型3-苯基-6 H-吡唑并[4,3- d ]异恶唑。介绍了使用所有获得的化合物进行的详细NMR光谱研究(1 H,13 C)。