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    METHOD FOR PRODUCING LINEAR PENTENENITRILE
    7.
    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：US20160168082A1

    公开(公告)日：2016-06-16

    申请号：US14941167

    申请日：2015-11-13

    申请人： BASF SE

    发明人： Tim Jungkamp ,  Robert BAUMANN ,  Michael BARTSCH ,  Gerd HADERLEIN ,  Hermann LUYKEN ,  Jens SCHEIDEL ,  Tobias AECHTNER ,  Peter PFAB ,  Petra DECKERT ,  Wolfgang SIEGEL ,  Peter BASSLER

    IPC分类号： C07C253/30

    CPC分类号： C07C253/30 ,  C07C253/10 ,  Y02P20/582 ,  C07C255/07

    摘要： A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) isomerizing a reactant stream which comprises 2-methyl-3-butenenitrile over at least one dissolved or dispersed isomerization catalyst to give a stream 1 which comprises the at least one isomerization catalyst, 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, (b) distilling stream 1 to obtain a stream 2 as the top product which comprises 2-methyl-3-butenenitrile, 3-pentenenitrile and (Z)-2-methyl-2-butenenitrile, and a stream 3 as the bottom product which comprises the at least one isomerization catalyst, (c) distilling stream 2 to obtain a stream 4 as the top product which, compared to stream 2, is enriched in (Z)-2-methyl-2-butenenitrile, based on the sum of all pentenenitriles in stream 2, and a stream 5 as the bottom product which, compared to stream 2, is enriched in 3-pentenenitrile and 2-methyl-3-butenenitrile, based on the sum of all pentenenitriles in stream 2, (d) distilling stream 5 to obtain a stream 6 as the bottom product which comprises 3-pentenenitrile and a stream 7 as the top product which comprises 2-methyl-3-butenenitrile.

    摘要翻译： 描述了制备3-戊烯腈的方法，其特征在于以下方法步骤：（a）在至少一种溶解或分散的异构化催化剂上异构化包含2-甲基-3-丁烯腈的反应物流，得到流1，其包含 至少一种异构化催化剂，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，得到作为顶部产物的物流2，其包含2-甲基 -3-丁烯腈，3-戊烯腈和（Z）-2-甲基-2-丁烯腈，以及作为底部产物的料流3，其包含至少一种异构化催化剂，（c）蒸馏物流2以获得物流4， 与流2相比，基于流2中的所有五烯丙烯的总和和作为底部产物的流5，与流2相比富含（Z）-2-甲基-2-丁烯腈的顶部产物与流2相比较 ，富含3-戊烯腈和2-甲基-3-丁烯腈，基于所有戊烯腈的总和 （d）蒸馏流5以获得作为底部产物的流6，其包含3-戊烯腈和作为顶部产物的料流7，其包含2-甲基-3-丁烯腈。

    Process for making nitriles
    8.
    发明授权
    Process for making nitriles 有权
    制造腈的方法

    公开(公告)号：US09169197B2

    公开(公告)日：2015-10-27

    申请号：US13808771

    申请日：2011-06-16

    申请人： Larry E. Moerbe ,  Tseng H. Chao

    发明人： Larry E. Moerbe ,  Tseng H. Chao

    IPC分类号： C07C253/10

    CPC分类号： C07C253/10 ,  Y02P20/584 ,  C07C255/04

    摘要： An improved multi-reaction zone process provides improved nitrile product quality and yield. In a first reaction zone, 1,3-butadiene is reacted with hydrogen cyanide in the presence of a catalyst to produce pentenenitriles comprising 3-pentenenitrile and 2-methyl-3-butenenitrile. In a second reaction zone, 2-methyl-3-butenenitrile, recovered from the first reaction zone, is isomerized to 3-pentenenitrile. In a third reaction zone, 3-pentenenitrile recovered from the first and second reaction zones is reacted with hydrogen cyanide in the presence of a catalyst and a Lewis acid to produce adiponitrile. Unwanted production and build-up of dinitriles, including methylglutaronitrile, in the first reaction zone for the hydrocyanation of 1,3-butadiene is prevented by limiting the flow of Lewis acid into the first reaction zone.

    摘要翻译： 改进的多反应区工艺提供了改进的腈产品质量和产率。 在第一反应区中，在催化剂存在下，使1,3-丁二烯与氰化氢反应，生成包含3-戊烯腈和2-甲基-3-丁烯腈的亚戊基腈。 在第二反应区中，从第一反应区回收的2-甲基-3-丁烯腈被异构化为3-戊烯腈。 在第三反应区中，在催化剂和路易斯酸的存在下，从第一和第二反应区回收的3-戊烯腈与氰化氢反应生成己二腈。 通过限制路易斯酸流入第一反应区域，阻止了在用于1,3-丁二烯氢化的第一反应区中的二腈（包括甲基戊二腈）的生产和积累。

    Process for making nitriles
    9.
    发明授权
    Process for making nitriles 有权
    制造腈的方法

    公开(公告)号：US08937198B2

    公开(公告)日：2015-01-20

    申请号：US13808795

    申请日：2011-06-16

    申请人： Larry E. Moerbe ,  Tseng H. Chao

    发明人： Larry E. Moerbe ,  Tseng H. Chao

    IPC分类号： C07C253/00

    CPC分类号： C07C253/10 ,  Y02P20/584 ,  C07C255/04

    摘要： A hydrocyanation reaction is used to react 1,3-butadiene with hydrogen cyanide in the presence of a catalyst to produce pentenenitriles, as well as reaction byproducts, such as methylglutaronitrile (MGN). The effluent from the hydrocyanation reaction is distilled in a particular manner to produce a pentenenitrile-enriched stream, a catalyst-enriched stream and a stream enriched in methylglutaronitrile (MGN). At least a portion of the catalyst enriched stream may be recycled to the hydrocyanation reaction. 3-pentenenitrile may be recovered and, optionally, further reacted with HCN to make adiponitrile (ADN).

    摘要翻译： 使用氢氰化反应在催化剂存在下使1,3-丁二烯与氰化氢反应生成戊烯腈，以及反应副产物，如甲基戊二腈（MGN）。 将氢氰化反应的流出物以特定方式蒸馏以产生富腈过程，富含催化剂的料流和富含甲基戊二腈（MGN）的料流。 至少一部分富含催化剂的料流可以再循环到氢化氰化反应中。 可以回收3-戊烯腈，并任选地与HCN进一步反应以制备己二腈（ADN）。

    PROCESSES FOR THE PREPARATION OF PYRROLIDINE INTERMEDIATES
    10.
    发明申请
    PROCESSES FOR THE PREPARATION OF PYRROLIDINE INTERMEDIATES 有权
    制备吡咯烷酮中间体的方法

    公开(公告)号：US20140296527A1

    公开(公告)日：2014-10-02

    申请号：US14346773

    申请日：2012-09-28

    申请人： SYNGENTA PARTICIPATIONS AG

    发明人： Tomas Smejkal ,  Helmars Smits ,  Sebastian Volker Wendeborn ,  Guillaume Berthon ,  Jerome Yves Cassayre ,  Myriem El Qacemi

    IPC分类号： C07D453/04 ,  C07C255/41 ,  C07D207/08 ,  C07D307/46 ,  C07D207/325 ,  C07D207/12

    CPC分类号： C07D453/04 ,  C07C253/10 ,  C07C253/30 ,  C07C255/40 ,  C07C255/41 ,  C07D207/08 ,  C07D207/12 ,  C07D207/267 ,  C07D207/325 ,  C07D207/333 ,  C07D207/40 ,  C07D307/46 ,  C07D409/12

    摘要： The present invention relates to processes for the enantio-selective preparation of spyrrolidine derivatives useful in the manufacture of pesticidally active compounds, as well as to intermediates in the processes. The processes include those comprising(a-i) reacting a compound of formula Ia wherein P is alkyl, aryl or heteroaryl, each optionally substituted, wherein the heteroaryl is connected at P via a ring carbon atom; R1 is chlorodifluoromethyl or trifluoromethyl; R2 is aryl or heteroaryl, each optionally substituted; with a source of cyanide in the presence a chiral catalyst to give a compound of formula IIa wherein P, R1 and R2 are as defined for the compound of formula Ia; and (a-ii) oxidising the compound of formula IIa with a peroxy acid, or peroxide in the presence of an acid to give a compound of formula VI wherein R1 and R2 are as defined for the compound of formula Ia.

    摘要翻译： 本发明涉及用于制备杀虫活性化合物的螺吡咯烷衍生物的对映选择性制备方法以及该方法中的中间体。 所述方法包括（a-i）使式Ia化合物（其中P为烷基，芳基或杂芳基）各自任意取代的化合物，其中杂芳基通过环碳原子在P连接; R1是氯二氟甲基或三氟甲基; R 2是芳基或杂芳基，各自任选被取代; 在存在手性催化剂的情况下产生氰化物源，得到式IIa化合物，其中P，R 1和R 2如对于式Ia化合物所定义; 和（a-ii）在酸存在下用过氧酸或过氧化物氧化式IIa化合物，得到式VI化合物，其中R 1和R 2如对于式Ia化合物所定义。