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    • 8. 发明授权
    • Recovery of (1-S)-2-oxo-bornane-10-sulphonate
    • 回收(1-S)-2-氧代 - 己烷-10-磺酸盐
    • US4139555A
    • 1979-02-13
    • US795845
    • 1977-05-11
    • Rudolf Zerbes
    • Rudolf Zerbes
    • C07C309/25C07C67/00C07C301/00C07C303/42C07C143/20
    • C07C303/42
    • A process has been developed for the recovery of (1-S)-2-oxo-bornane sulphonic acid (D-camphor-.beta.-sulphonic acid) from contaminated aqueous solutions, particularly from those which arise as mother liquors from the resolution of the racemates of amino compounds wherein said solutions are treated with guanidine bases (or soluble salts thereof) of the formula ##STR1## in which Ar is an optionally substituted aryl radical at pH about 3.5 to 7.5 and the guanidinium camphorsulphonate is separated off and split. The process is effective even where the mother liquors are contaminated with large amounts of inorganic salts.
    • 已经开发了用于从受污染的水溶液中回收(1-S)-2-氧代 - 烷烃磺酸(D-樟脑-β-磺酸)的方法,特别是从作为母液产生的那些 氨基化合物的外消旋体,其中所述溶液用式“IMAGE”的胍碱(或其可溶性盐)处理,其中Ar是pH约3.5至7.5的任选取代的芳基,并且樟脑磺酸胍被分离和分离。 即使母液被大量的无机盐污染,该方法也是有效的。