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    Process for producing C.sub.3 -C.sub.4 monoalkylchlorides
    7.
    发明授权
    Process for producing C.sub.3 -C.sub.4 monoalkylchlorides 失效
    生产C3-C4单烷基氯化物的方法

    公开(公告)号：US5132476A

    公开(公告)日：1992-07-21

    申请号：US719660

    申请日：1991-06-24

    申请人： Gunther Osterburg ,  Wolfgang Reith ,  Karl-Heinz Gluzek

    发明人： Gunther Osterburg ,  Wolfgang Reith ,  Karl-Heinz Gluzek

    IPC分类号： C07C17/16 ,  C07C17/38 ,  C07C17/383 ,  C07C19/01

    CPC分类号： C07C17/16 ,  C07C17/38

    摘要： The vaporous reaction product from the continuous reaction of C.sub.3 -C.sub.4 monoalkanols with hydrogen chloride is removed, condensed, and split into a light organic phase and a heavy aqueous phase. The heavy aqueous phase is immediately distilled yielding HCl-containing reaction water at the bottom of the column and an alcohol stream at the head of the column from where it is returned to the synthesis. The light organic phase is washed with water, dried and, optionally, distilled. The water from this washing operation is neutralized, stripped off in order to remove dissolved organic constituents, and removed as waste water from the system.

    摘要翻译： 将C3-C4单链烷醇与氯化氢的连续反应的气相反应产物除去，冷凝，分为轻质有机相和重质水相。 立即蒸馏出重质水相，在塔的底部产生含HCl的反应水，并在塔头从其返回到合成中的醇流。 轻质有机相用水洗涤，干燥，任选地蒸馏。 洗涤操作中的水被中和，剥离以除去溶解的有机成分，并从系统中作为废水除去。

    Process of preparing penicillamine
    10.
    发明授权
    Process of preparing penicillamine 失效
    制备青霉胺的方法

    公开(公告)号：US4028406A

    公开(公告)日：1977-06-07

    申请号：US657835

    申请日：1976-02-13

    申请人： Friedrich Asinger ,  Heribert Offermanns ,  Karl-Heinz Gluzek

    发明人： Friedrich Asinger ,  Heribert Offermanns ,  Karl-Heinz Gluzek

    IPC分类号： C07D277/06 ,  C07C99/00

    CPC分类号： C07D277/06 ,  Y10S426/807

    摘要： Improvements in the process of preparing penicillamine or a homolog thereof by reacting an .alpha.-carbon atom branched aldehyde, sulfur and ammonia to form a thiazoline-.DELTA..sup.3, reacting the thiazoline-.DELTA..sup.3 with anhydrous hydrogen cyanide to form a thiazolidine-4-carbonitrile, hydrolyzing the nitrile to form a mixture of the salt of the thiazolidine-4-carboxylic acid and ammonium salts, separating off the ammonium salts and hydrolytically decomposing the thiazolidine-4-carboxylic acid, wherein under the action of a mineral acid the thiazolidine-4-carbonitrile is in the first stage converted at low temperatures into the salt of the thiazolidine-4-carbonamide and then at higher temperatures converted into the salt of the thiazolidine-4-carboxylic acid.

    摘要翻译： 通过使α-碳原子支链醛，硫和氨反应形成噻唑啉-DTA 3，制备青霉胺或其同系物的方法的改进，使噻唑啉-DTA 3与无水氰化氢反应形成噻唑烷-4-腈 水解腈形成噻唑烷-4-羧酸盐和铵盐的混合物，分离出铵盐并水解分解噻唑烷-4-羧酸，其中在无机酸的作用下，噻唑烷-4-酮 4-甲腈在第一阶段在低温下转化成噻唑烷-4-碳酰胺的盐，然后在更高的温度下转化成噻唑烷-4-羧酸的盐。