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源语言标题
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(CN105503666) 一种便捷合成2-甲氧基-5-氨磺酰基苯甲酸甲酯的方法
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公开号/公开日
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CN105503666 A 2016-04-20 [CN105503666] / 2016-04-20
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申请号/申请日
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2015CN-1010516 / 2015-12-30
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发明人
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XIA QIUJING;
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申请人
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SUZHOU CHENGHE PHARMACEUTICAL & CHEMICAL;
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主分类号
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IPC分类号
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C07C-303/36C07C-311/29
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摘要
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(CN105503666) 本发明提供了一种便捷合成2-甲氧基-5-氨磺酰基苯甲酸甲酯的方法,将摩尔比是1:1~1.1的2-甲氧基-5-氯苯甲酸甲酯和氨基亚磺酸钠以及溶剂和催化剂加入到反应装置,控制温度在40~65℃反应12~18小时;反应结束,加入活性炭脱色,过滤去除活性炭、催化剂及副产氯化钠;滤液经减压浓缩得2-甲氧基-5-氨磺酰基苯甲酸甲酯。本发明所述的便捷合成2-甲氧基-5-氨磺酰基苯甲酸甲酯的方法,本发明优点为原工艺流程短,收率高,质量好,且无污染环境的三废产生,十分环保,适合大规模工业化生产。
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地址
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代理人
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代理机构
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;
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优先权号
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2015CN-1010516 2015-12-30
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主权利要求
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(CN105503666) 1. A convenient synthesis 2-methoxy-5-sulfamoylbenzoic acid methyl ester of a method, characterized in: the molar ratio is 1: to 1-1.1 2-methoxy-5-chlorobenzoic acid methyl ester and amino SULFONATE and solvent and a catalyst added to the re
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法律状态
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(CN105503666) LEGAL DETAILS FOR CN105503666 Actual or expected expiration date=2035-12-30 Legal state=ALIVE Status=PENDING Event publication date=2015-12-30 Event code=CN/APP Event indicator=Pos Event type=Examination events Application details Application country=CN CN201511010516 Application date=2015-12-30 Standardized application number=2015CN-1010516 Event publication date=2016-04-20 Event code=CN/A Event type=Examination events Published application Publication country=CN Publication number=CN105503666 Publication stage Code=A Publication date=2016-04-20 Standardized publication number=CN105503666 Event publication date=2016-04-20 Event code=CN/C06 Event indicator=Pos Event type=Examination events Publication Event publication date=2016-05-18 Event code=CN/C10 Event type=Examination events Request of examination as to substance
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专利类型码
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A
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国别省市代码
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