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    Method for accelerating oxime production
    5.
    发明授权
    Method for accelerating oxime production 失效
    加速肟生产的方法

    公开(公告)号：US5334762A

    公开(公告)日：1994-08-02

    申请号：US13278

    申请日：1993-02-04

    申请人： James P. Neilan ,  Donald J. Gosciniak

    发明人： James P. Neilan ,  Donald J. Gosciniak

    IPC分类号： C07C249/08

    CPC分类号： C07C249/08

    摘要： A method for preparing oximes where an aldehyde or ketone is reacted with hydroxylamine or its salt in the presence of a catalytic amount of an organotin(IV) compound such as monoalkyltin(IV), dialkyltin(IV) and aryltin(IV). The organotin(IV) compound is represented by the formula I:(R.sup.1).sub.n SnX.sub.m-n (I)where R.sup.1 is independently selected from alkyl of 1 to 18 carbons or aryl, X is halogen, oxygen, hydroxyl, OR.sup.1, R.sup.2 CO.sub.2 --, R.sup.2 O.sub.2 C--(Z).sub.y --CO.sub.2 -- or R.sup.2 CO.sub.2 (CH.sub.2).sub.y S--, R.sup.2 is alkyl of 1 to 18 carbons or aryl, Z is selected from CH.sub.2 or CH.dbd.CH, where y is 0 to 6, n is 1 or 2 and m is 4 except that when X is oxygen, n is 2 and m is 3. Exemplary of the organotin(IV) compounds are butyltin tris(2-ethylhexanoate), dibutyltin diacetate and diphenyltin dichloride.

    摘要翻译： 一种制备肟的方法，其中醛或酮与羟胺或其盐在催化量的有机锡（IV）化合物如单烷基锡（IV），二烷基锡（IV）和芳基锡（IV））存在下反应。 有机锡（IV）化合物由式I表示：（R1）nSnXm-n（I）其中R1独立地选自1至18个碳的烷基或芳基，X是卤素，氧，羟基，OR1，R2CO2-， R2O2C-（Z）y-CO2-或R2CO2（CH2）yS-，R2是1至18个碳原子的烷基或芳基，Z选自CH 2或CH = CH，其中y为0至6，n为1或2 有机锡（IV）化合物为三（2-乙基己酸）丁基锡，二乙酸二丁基锡和二苯基锡二氯化锡，其中m为4，不同之处在于X为氧时n为2且m为3。