- One-pot production process of trimecaine hydrochloride
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The invention discloses a one-pot production process of trimecaine hydrochloride. According to the method, s-trimethyl aniline, chloro-acetyl chloride and diethyl amine carry out reactions to obtain trimecaine hydrochloride. The liquid phase purity of the obtained trimecaine hydrochloride product is 99.9% or above, the molar yield reaches 90-95%, and the production method of trimecaine hydrochloride has the advantages of short production period, easy operation, low cost, high yield, and the like.
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Paragraph 0006; 0017-0019
(2020/04/22)
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- A hydrochloric acid three a kain production method (by machine translation)
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The invention discloses a hydrochloric acid three a kain production method. The method adopts the raw materials are trimethyl aniline, chloroacetyl chloride, diethylamine to carry out the reaction, the product is obtained in the liquid phase purity of 99.9% or more, the total yield up to 90% or more. The hydrochloride of this invention three a kain production method with the production cycle is short, the operation is simple, low cost, high yield the advantages, in addition the production method intermediate solvent recovery can be applied mechanically, more security and environmental protection; and is suitable for industrial production. (by machine translation)
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Paragraph 0022-0024
(2019/03/28)
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