专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

KR100371590B1 2-클로로피리딘의 제조방법 有权
标题翻译： 2-클로로피리딘의제조방법
公开(公告)号：KR100371590B1
公开(公告)日：2003-02-11
申请号：KR1020000007761
申请日：2000-02-18
申请人： 주식회사 유니온 케미칼
发明人： 박외숙 , 정재철
IPC分类号： C07D213/16
摘要： PURPOSE: A method for producing 2-chloropyridine is provided, thereby the title compound having the improved stereo-selectivity can be cheaply produced in higher yield. CONSTITUTION: 2-chloropyridine of the formula is produced by solubilizing pyridine-1-oxide in organic solvent and reacting the mixture at from 0 deg. C to below boiling temperature of solvent in the presence of chlorinating agents and base, in which the chlorinating agents are phosphoryl chloride, thionyl chloride, sulfunyl chloride, p-toluenesufonyl chloride, benzensulfonyl chloride, and methanesulfonyl chloride, and base is selected from inorganic base such as potassium carbonate, sodium carbonate, ammonium carbonate, lower alkyl amine, lower dialkyl amines, lower trialkyl amines, aniline, N-methylaniline, N,N-dimethylaniline, and lower alkoxides.
摘要翻译：目的：提供了生产2-氯吡啶的方法，由此具有改进的立体选择性的标题化合物可以以更高的收率廉价地生产。构成：通过将吡啶-1-氧化物溶解在有机溶剂中并使混合物在0℃下反应来制备下式的2-氯吡啶。在低于氯化剂和碱存在下的溶剂沸点温度下，其中氯化剂为磷酰氯，亚硫酰氯，磺酰氯，对甲苯磺酰氯，苯磺酰氯和甲磺酰氯，碱选自无机碱如碳酸钾，碳酸钠，碳酸铵，低级烷基胺，低级二烷基胺，低级三烷基胺，苯胺，N-甲基苯胺，N，N-二甲基苯胺和低级醇盐。

2. 发明公开

KR1020010081700A 2-클로로피리딘의 제조방법 有权
标题翻译：生产2-氯吡啶的方法
公开(公告)号：KR1020010081700A
公开(公告)日：2001-08-29
申请号：KR1020000007761
申请日：2000-02-18
申请人： 주식회사 유니온 케미칼
发明人： 박외숙 , 정재철
IPC分类号： C07D213/16
摘要： PURPOSE: A method for producing 2-chloropyridine is provided, thereby the title compound having the improved stereo-selectivity can be cheaply produced in higher yield. CONSTITUTION: 2-chloropyridine of the formula is produced by solubilizing pyridine-1-oxide in organic solvent and reacting the mixture at from 0 deg. C to below boiling temperature of solvent in the presence of chlorinating agents and base, in which the chlorinating agents are phosphoryl chloride, thionyl chloride, sulfunyl chloride, p-toluenesufonyl chloride, benzensulfonyl chloride, and methanesulfonyl chloride, and base is selected from inorganic base such as potassium carbonate, sodium carbonate, ammonium carbonate, lower alkyl amine, lower dialkyl amines, lower trialkyl amines, aniline, N-methylaniline, N,N-dimethylaniline, and lower alkoxides.
摘要翻译：目的：提供2-氯吡啶的制造方法，由此，具有提高的立体选择性的标题化合物可以以较高的收率廉价地生产。构成：通过将吡啶-1-氧化物溶解在有机溶剂中并使混合物在0℃下反应制备下式的2-氯吡啶。在氯化剂和碱的存在下，C以低于溶剂的沸点温度，其中氯化剂是磷酰氯，亚硫酰氯，亚磺酰氯，对甲苯磺酰氯，苯磺酰氯和甲磺酰氯，碱选自无机碱如碳酸钾，碳酸钠，碳酸铵，低级烷基胺，低级二烷基胺，低级三烷基胺，苯胺，N-甲基苯胺，N，N-二甲基苯胺和低级醇盐。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式