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    • 8. 发明授权
    • Method for the production of thioalkylene glycols
    • 硫代亚烷基二醇的制备方法
    • US4493938A
    • 1985-01-15
    • US253144
    • 1981-04-10
    • Kunihiro ShimamotoHiroshi HatanakaShinichiro SekiRyozo Orita
    • Kunihiro ShimamotoHiroshi HatanakaShinichiro SekiRyozo Orita
    • C07C323/12B01J31/00B01J31/08C07C67/00C07C313/00C07C319/14C07C149/00C07C148/04
    • C07C323/00
    • This invention is concerned with a method for the production of thioalkylene glycols by using the reaction solvent containing mainly the thioalkylene glycol, the product of the reaction of alkylene oxide and hydrogen sulfide, without using any other special solvent or inert solvent, in the presence of anion exchange resin as the catalyst, the method which enables the simple, economical and high-yield production of thioalkylene glycols because a high pressure is not necessarily required and the purification and isolation are carried out very easily.For example, according to this invention, thioethylene glycol was obtained in a 91% yield from ethylene oxide and hydrogen sulfide in the mixture of thioethylene glycol and thiodiethylene glycol as the solvent in the presence of the anion exchange resin as the catalyst. Similarly, thiopropylene glycol in a 95% yield from propylene oxide and hydrogen sulfide in thiopropylene glycol as the solvent, and thio-.alpha.-butylene glycol in a 94% yield from .alpha.-butylene oxide and hydrogen sulfide in thio-.alpha.-butylene glycol as the solvent, were obtained.
    • 本发明涉及通过使用主要含有硫代亚烷基二醇的反应溶剂(环氧烷和硫化氢的反应产物)而不使用任何其它特殊溶剂或惰性溶剂来生产硫代亚烷基二醇的方法,在存在 阴离子交换树脂作为催化剂,因为不需要高压而使得硫代亚烷基二醇的简单,经济和高产率的制备方法非常容易地进行纯化和分离。 例如,根据本发明,在作为催化剂的阴离子交换树脂的存在下,以硫乙二醇和硫二甘醇为混合物的混合物中的环氧乙烷和硫化氢以91%的收率得到硫代乙二醇。 类似地,来自环氧丙烷和硫代丙二醇作为溶剂的硫化氢的硫丙二醇和硫代-α-丁烯二醇在α-丁烯二醇中的α-环氧丁烷和硫化氢的产率为94%,作为 得到溶剂。