CN100389106C - 具有稳定性的薁磺酸钠合成工艺 - Google Patents

具有稳定性的薁磺酸钠合成工艺 Download PDF

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CN100389106C
CN100389106C CNB2005100130792A CN200510013079A CN100389106C CN 100389106 C CN100389106 C CN 100389106C CN B2005100130792 A CNB2005100130792 A CN B2005100130792A CN 200510013079 A CN200510013079 A CN 200510013079A CN 100389106 C CN100389106 C CN 100389106C
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许荧
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Tianjin top pharmaceutical Limited by Share Ltd
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Abstract

一种具有稳定性的薁磺酸钠合成工艺,包括有:加合反应:将1∶100的噻噁烷和磷酸三正丙酯混合物SB102和二氯乙烷与SO3进行弱络合反应;磺化反应:将所得反应物与兰油烃和SB102进行化学反应;冷却降温:将磺化反应后的液体冷却降温;分离:将冷却降温后的液体分离出有机溶剂;分馏:对有机溶剂在分馏器中进行分馏,排出水分后继续参加反应;水洗:将分离出的水层的生成物进行水洗;烘干:对生成物进行烘干;重结晶:加入稳定剂结晶纯化得到薁磺酸钠。本发明,采用液化SO3取代发烟硫酸,无毒有机溶剂代替二噁烷,并在结晶物中加入稳定剂,从而不存在废酸的污染,解决了有毒作业的问题和产品的稳定性。还可将未完全参加反应的有机溶剂提纯回收后继续参加循环,减少了污染。

Description

具有稳定性的薁磺酸钠合成工艺
技术领域
本发明涉及一种薁磺酸钠合成工艺,特别是涉及一种无污染、成本低、性能稳定的具有稳定性的薁磺酸钠合成工艺。
背景技术
薁磺酸钠,又名水溶性薁。水溶性薁是洋甘菊花的有效成份,具有很强的抗胃蛋白酶、消炎、抗菌、抗过敏、促进粘膜新陈代谢的作用。而且,安全性高,可以广泛用于各种药物制剂。特别是对皮肤及口腔疾病的治疗和预防,效果显著。也可用于配制牙膏、膏霜类化装品、洗浴剂及肥皂中。
薁磺酸钠,化学名是:3.8-二甲基-5(1-甲基乙基)-1-薁磺酸钠〔sodium 3.8-dimethyl-5(1-methylehyl)-1-sulfonate〕。薁类化合物化学上不稳定,受光照或空气氧化会渐渐分解和褪色。
薁磺酸钠也不太稳定,特别是在加热和光照条件下,易于脱去磺酸基。薁磺酸钠是由兰油烃经磺化反应后引入磺酸基,再经中和成盐而制得。在合成薁磺酸钠的反应中,磺酸基的引入主要有两种方法:(1)兰油烃在乙酐溶液中于室温条件下,以与浓硫酸进行磺化。此法原料消耗比较大,需以柱色谱分离,后处理过于复杂,成本较高,难于工业化生产。(参见:Meier W,Meuche D,Heilbronner E.Str-ucture of the guaiazuleneslfonicaci-ds[J].Helv chim Acta.196346(6))(2)兰油烃在四氯化碳溶液中与二噁烷·三氧化硫加合物反应,经萃取,氢氧化钡中和转为薁磺酸钠。(参见:Makoto M,Hiroshi W,Mieko H,el al.Studies onazulenes.V.S-guaiazulene-3-sulfonic.acid[J]pharm Bull.1957.5(5))。
如图1所示,现有制备薁磺酸钠的工艺方法为:在500ml三口瓶中加入发烟磺酸200ml,在50~80℃进行蒸馏,将蒸发出的三氧化磺通入装有1·2-二氯乙烷(300ml)和二噁烷(88g)的三口瓶中,并控温于0℃以下,增重80g后停止通入,继续搅拌至不再有三氧化硫烟雾,待用。
搅拌下于0℃将上述所得试剂滴加到兰油烃(100g)的1·2-二氯乙烷(250ml)溶液中,加毕后于20℃搅拌30分。转至装有碎冰(1000g)的容器中,静置至碎冰溶化。分离出有机层,回收溶剂及过量兰油烃。水层以碳酸钠调PH8,过滤、水洗、烘干,得到固体(120g),用水重结晶,得到兰色片状晶体薁磺酸钠。(参见:中国医药工业杂志2002 33(4)期的《呱仑酸纳的合成》)
但是,上述的合成方法存有如下不足:(1)有废酸和有机溶剂产生,对环境造成污染;(2)二噁烷毒性较大;(3)产品稳定性差;(4)能耗高。
发明内容
本发明所要解决的技术问题是,提供一种无污染、无毒性、性能稳定的具有稳定性的薁磺酸钠合成工艺。
本发明所采用的技术方案是:一种具有稳定性的薁磺酸钠合成工艺,工艺步骤依次为:加合反应阶段:在已放有SB102和二氯乙烷的反应器中加入SO3进行弱络合反应,所述的SB102为1∶100的噻噁烷和磷酸三正丙酯混合物;磺化反应阶段:将弱络合反应后的反应物滴加到盛有兰油烃和SB102的另一反应器中进行化学反应;冷却降温阶段:将磺化反应后的液体在冷却器中进行冷却降温;分离阶段:将冷却降温后的液体在分离器中进行分层,分离出有机溶剂送分馏阶段,分离出的水层加入碳酸钠调至pH=8;分馏阶段:将被分离出的有机溶剂在分馏器中进行分馏,排出水分,剩余的有机溶剂分别送到加合反应阶段和磺化反应阶段继续参加反应;水洗阶段:将已分离出的水层的生成物在水洗器中进行水洗;烘干阶段:将水洗后的生成物在烘干机中进行烘干;重结晶阶段:在烘干后的生成物中加入稳定剂,进行重结晶纯化得到薁磺酸钠。
还包括有萃取阶段,是将在水洗阶段和重结晶阶段中的液体在萃取器中进行萃取,分离出有机溶剂和兰油烃送入磺化反应阶段继续参加反应。
本发明的具有稳定性的薁磺酸钠合成工艺,采用液化SO3取代发烟硫酸,无毒有机溶剂代替二噁烷,并在结晶物中加入稳定剂,从而不存在废酸的污染,解决了有毒作业的问题和产品的稳定性。本工艺还可将未完全参加反应的有机溶剂提纯回收后继续参加循环,减少了污染。
附图说明
图1是现有技术的工艺流程示意图;
图2是本发明的工艺流程示意图。
具体实施方式
下面结合附图给出具体实施例,进一步说明本发明是如何实现的。
如图2所示,具有稳定性的薁磺酸钠合成工艺的工艺步骤依次为:
1.加合反应阶段:在反应器中放入SB102和二氯乙烷后,在0℃的温度下边搅拌边通入SO3进行弱络合反应;
2.磺化反应阶段:将弱络合反应后的产物在0℃且在搅拌条件下滴加到盛有兰油烃和SB102的另一反应器中,进行化学反应;
3.冷却降温阶段:将磺化反应后的液体在冷却器中冷却降温3小时使其降至0℃;
4.分离阶段:将冷却降温后的液体在分离器中进行分层,分离出有机溶剂送分馏阶段,分离出的水层加入碳酸钠调至pH=8;
5.分馏阶段:将被分离出的有机剂在分馏器中进行分馏,排出水分,剩余的有机溶剂分别送到加合反应阶段和磺化反应阶段继续参加反应;
6.水洗阶段:将已分离出的水层生成物在水洗器中进行水洗;
7.烘干阶段:将水洗后的生成物在烘干机中在80℃的温度下烘干2小时;
8.重结晶阶段:在烘干后的生成物中加入0.5%的稳定剂,并在0℃的温度下进行重结晶纯化得到薁磺酸钠。
9.萃取阶段:是将在水洗阶段和重结晶阶段中的液体转入萃取器中加入二氯乙烷做为萃取剂进行萃取,分离出有机溶剂和兰油烃送入磺化反应阶段继续参加反应。
上面所述的稳定剂是醋酸氯已定。所述的SB102为1∶100的噻噁烷和磷酸三正丙酯混合物。
实施例1
在500毫升三口瓶中加入300毫升二氯乙烷和85克SB102试剂,通入液化后的三氧化硫,控制温度于0℃,增重至80克后停止通入,继续搅拌20分钟待用。
搅拌下于0℃将上述所得试剂滴加到盛有100克兰油烃和250毫升二氯乙烷的溶液容器中,加毕后升温至20℃并继续搅拌30分钟,将此溶液转至装有1000克碎冰的容器中,静置至碎冰溶化,分离出有机层经分馏后回用。水层以碳酸钠调至pH=8,水洗后在40℃的温度下烘干3小时,对所得物加水溶解并加入0.6克稳定剂后重结晶得120克片状晶体,得率75%,水洗阶段和重结晶阶段中的液体,用300毫升二氯乙烷萃取兰油烃及SB102回用。
实施例2
在500毫升三口瓶中加入200毫升二氯乙烷和60克SB102试剂,通入液化后的三氧化硫,控制温度于0℃以下,增重至55克后停止通入,继续搅拌20分钟先待用。
搅拌下于0℃将上述所得试剂滴加到67克兰油烃和170毫升二氯乙烷的溶液中,加毕于20℃的温度下搅拌30分钟。转至装有700克碎冰的容器中,静置至碎冰溶化,分离出有机层经分馏后回用。水层以碳酸钠调至pH=8,水洗后在80℃的温度下烘干3小时,得品加水溶解并加入0.4克稳定剂后重结晶得78克片状晶体,得率73%,水洗阶段和重结晶阶段中的液体,用200毫升二氯乙烷萃取兰油烃及SB102回用。
实施例3
在500毫升三口瓶中加入250毫升二氯乙烷和75克SB102试剂,通入液化后的三氧化硫,控制温度于0℃以下,增重至70克后停止通入,继续搅拌20分钟先待用。
搅拌下于0℃将上述所得试剂滴加到85克兰油烃和210毫升二氯乙烷的溶液中,加毕于20℃的温度下搅拌30分钟。转至装有850克碎冰的容器中,静置至碎冰溶化,分离出有机层经分馏后回用。水层以碳酸钠调至pH=8,水洗后在80℃的温度下烘干3小时,对所得物加水溶解并加入0.5克稳定剂后重结晶得98克片状晶体,得率74%,水洗阶段和重结晶阶段中的液体,用250毫升二氯乙烷萃取兰油烃及SB102回用。

Claims (3)

1.一种具有稳定性的薁磺酸钠合成工艺,其特征在于,工艺步骤依次为:(1)加合反应阶段:在已放有SB102和二氯乙烷的反应器中加入SO3进行弱络合反应,所述的SB102为1∶100的噻噁烷和磷酸三正丙酯混合物;(2)磺化反应阶段:将弱络合反应后的反应物滴加到盛有兰油烃和SB102的另一反应器中进行化学反应;(3)冷却降温阶段:将磺化反应后的液体在冷却器中进行冷却降温;(4)分离阶段:将冷却降温后的液体在分离器中进行分层,分离出有机溶剂送分馏阶段,分离出的水层加入碳酸钠调至pH=8;(5)分馏阶段:将被分离出的有机溶剂在分馏器中进行分馏,排出水分,剩余的有机溶剂分别送到加合反应阶段和磺化反应阶段继续参加反应;(6)水洗阶段:将已分离出的水层的生成物在水洗器中进行水洗;(7)烘干阶段:将水洗后的生成物在烘干机中进行烘干;(8)重结晶阶段:在烘干后的生成物中加入稳定剂,进行重结晶纯化得到薁磺酸钠。
2.根据权利要求1所述的具有稳定性的薁磺酸钠合成工艺,其特征在于,还包括有(9)萃取阶段,是将在水洗阶段和重结晶阶段中的液体在萃取器中进行萃取,分离出有机溶剂和兰油烃送入磺化反应阶段继续参加反应。
3.根据权利要求1所述的具有稳定性的薁磺酸钠合成工艺,其特征在于,所述的稳定剂是醋酸氯已定。
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CN104688552B (zh) * 2015-01-30 2018-04-27 天津顶硕药业股份有限公司 一种含有薁磺酸钠的抗过敏药用沐浴液
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CN106748912B (zh) * 2016-12-30 2019-06-21 南京济群医药科技股份有限公司 一种薁磺酸钠一水合物的合成工艺
CN108863859A (zh) * 2018-09-04 2018-11-23 江西依思特香料有限公司 薁磺酸钠的制备方法

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