4-氯吡啶置于manganese Tetrakis(2,6-Dichlorophenyl)Porphyrin,Ammonium Acetate,双氧水体系中,用 二氯甲烷,乙腈 用作溶剂,化学反应 2.0H,以33%的收率获得4-氯吡啶 N-氧化物 参考文献:Oxidation Of N-Heterocycles By H2O2 Catalyzed By A Mn-Porphyrin: An Easy Access To N-Oxides Under Mild Conditions 标题:Oxidation Of N-Heterocycles By H2O2 Catalyzed By A Mn-Porphyrin: An Easy Access To N-Oxides Under Mild Conditions 摘要:多种n-杂芳香化合物在过氧化氢作为供氧剂和少量锰卟啉催化作用下,高效转化为相应的n-氧化物,并具有非常好的化学选择性.本文讨论了该方法的应用范围和局限性. Doi:10.1055/s-1997-1383
专利号:US-5215997-A 优先权日:1985-09-11 标题:Synthesis of beta-lactam compounds 发明人:HUNGERBUEHLER ERNST; KALVODA JAROSLAV 权利人:CIBA GEIGY CORP 摘要:The invention relates to an improved process for the preparation of compounds of formula ##STR1## or salts thereof, starting from compounds of formulae ##STR2## via compounds of formulae ##STR3## in which compounds R 1 is hydrogen or lower alkyl, R 2 is an organic radical which may carry a functional group which may be protected by a customary protective group R 2 o , R 3 is hydrogen or a customary carboxyl protective group R 3 o , W is a group which can be replaced by a thiocarboxylic acid radical of formula III, and Z is oxygen or sulfur.
专利号:EP-0215739-A1 优先权日:1985-09-11 标题:Synthesis of beta-lactam compounds
专利号:EP-0215739-B1 优先权日:1985-09-11 标 题:Synthesis of beta-lactam compounds