METHOD FOR PRODUCING OPTICALLY ACTIVE 2-BENZYLOXYCYCLOHEXYLAMINE
    5.
    发明申请
    METHOD FOR PRODUCING OPTICALLY ACTIVE 2-BENZYLOXYCYCLOHEXYLAMINE 审中-公开
    用于生产光活性2-苯甲酰氧基甲酰胺的方法

    公开(公告)号:US20090280544A1

    公开(公告)日:2009-11-12

    申请号:US12440811

    申请日:2007-09-12

    IPC分类号: C12P13/00

    CPC分类号: C12P13/001 C12P41/007

    摘要: The present invention relates to a method for the enantioselective acylation of trans-2-benzyloxycyclohexylamine or cis-2-benzyloxycyclohexylamine, according to which an enantiomer mixture of 2-benzyloxycyclohexylamine is reacted with an acylation agent in the presence of a hydrolase. The invention also relates to a method for producing optically active trans-stereoisomers of 2-benzyloxycyclohexylamine.

    摘要翻译: 本发明涉及反式-2-苄氧基环己胺或顺式-2-苄氧基环己胺的对映选择性酰化方法,根据该方法,在水解酶存在下,使2-苄氧基环己胺的对映异构体混合物与酰化剂反应。 本发明还涉及2-苄氧基环己胺的光学活性反式立体异构体的制备方法。

    METHOD FOR PRODUCING LINEAR PENTENENITRILE
    6.
    发明申请
    METHOD FOR PRODUCING LINEAR PENTENENITRILE 有权
    生产线性胆固醇的方法

    公开(公告)号:US20120178958A1

    公开(公告)日:2012-07-12

    申请号:US13361783

    申请日:2012-01-30

    IPC分类号: C07C253/30

    摘要: A method for producing 3-pentenenitrile is provided that includes: (a) isomerizing an educt stream containing 2-methyl-3-butenenitrile on at least one dissolved or dispersed isomerisation catalyst to form a stream (1), which contains the isomerisation catalyst(s), 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile; (b) distilling the stream (1) to obtain a stream (2) as the overhead product, which contains 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile and a stream (3) as the bottom product, which contains the isomerisation catalyst(s); (c) distilling the stream (2) to obtain a stream (4) as the overhead product, which is enriched with (Z)-2-methyl-2-butenenitrile in comparison to stream (2), and a stream (5) as the bottom product, which is enriched with 3-pentenenitrile and 2-methyl-3-butenenitrile in comparison to stream (2); (d) distilling stream (5) to obtain a stream (6) as the bottom product, which contains 3-pentenenitrile and a stream (7) as the head product containing 2-methyl-3-butenenitrile.

    摘要翻译: 提供了一种制备3-戊烯腈的方法,其包括:(a)在至少一种溶解或分散的异构化催化剂上异构化含有2-甲基-3-丁烯腈的流出物流以形成含有异构化催化剂( s),2-甲基-3-丁烯腈,3-戊烯腈和(Z)-2-甲基-2-丁烯腈; (b)蒸馏物流(1)以获得作为塔顶产物的物流(2),其含有2-甲基-3-丁烯腈,3-戊烯腈和(Z)-2-甲基-2-丁烯腈和流( 3)作为含有异构化催化剂的底部产物; (c)与料流(2)相比,蒸馏物流(2)以获得作为塔顶产物的物流(4),其与(2)相比富含(Z)-2-甲基-2-丁烯腈, 作为与料流(2)相比富含3-戊烯腈和2-甲基-3-丁烯腈的底部产物; (d)蒸馏物流(5),得到作为底物的物流(6),其含有3-戊烯腈和作为含有2-甲基-3-丁烯腈的头部产物的物流(7)。