CN106117043A - 医药原料3-甲基全氟辛酸的合成方法 - Google Patents
医药原料3-甲基全氟辛酸的合成方法 Download PDFInfo
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- CN106117043A CN106117043A CN201510749083.9A CN201510749083A CN106117043A CN 106117043 A CN106117043 A CN 106117043A CN 201510749083 A CN201510749083 A CN 201510749083A CN 106117043 A CN106117043 A CN 106117043A
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- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
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- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/353—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by isomerisation; by change of size of the carbon skeleton
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- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
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Abstract
本发明涉及一种医药原料3-甲基全氟辛酸的合成方法,将原料辛酰氯与氟化氢及少量正丁基硫酸投入电解槽,于20-25℃下通电(电压5-8V),电解产物用碱中和,再先后通过酸化和甲基化,最后蒸馏,即得3-甲基全氟辛酸。本发明医药原料3-甲基全氟辛酸的合成方法简单、高效,并且操作安全,在具体生产中非常实用。
Description
技术领域
本发明涉及一种医药原料3-甲基全氟辛酸的合成方法。
背景技术
3-甲基全氟辛酸是许多药物合成的起始原料,特别是很多全氟化合物的起始原料,目前国内未见报道此化合物的合成方法。
发明内容
本发明的目的在于克服上述不足,提供一种简单、高效、安全操作的医药原料3-甲基全氟辛酸的合成方法。
本发明的目的是这样实现的:
一种医药原料3-甲基全氟辛酸的合成方法,将原料辛酰氯与氟化氢及少量正丁基硫酸投入电解槽,于20-25℃下通电(电压5-8V),电解产物用碱中和,再先后通过酸化和甲基化,最后蒸馏,即得3-甲基全氟辛酸。
与现有技术相比,本发明的有益效果是:
本发明医药原料3-甲基全氟辛酸的合成方法简单、高效,并且操作安全,在具体生产中非常实用。
具体实施方式
本发明医药原料3-甲基全氟辛酸的合成方法具体如下:
将原料辛酰氯与氟化氢及少量正丁基硫酸投入电解槽,于20-25℃下通电(电压5-8V),电解产物用碱中和,再先后通过酸化和甲基化,最后蒸馏,即得3-甲基全氟辛酸。此粗品的纯度可以满足一般的反应需求,可直接投入反应中。
Claims (1)
1.一种医药原料3-甲基全氟辛酸的合成方法,其特征在于将原料辛酰氯与氟化氢及少量正丁基硫酸投入电解槽,于20-25℃下通电(电压5-8V),电解产物用碱中和,再先后通过酸化和甲基化,最后蒸馏,即得3-甲基全氟辛酸。
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