公开(公告)号：EP3819289B1

公开(公告)日：2022-08-24

申请号：EP19815317.3

申请日：2019-07-20

发明人： DONG, Zhipeng ,  GUO, Qingchun ,  LIN, Bin ,  YUAN, Ligang ,  GUO, Hongyong ,  ZHANG, Zhihu ,  XU, Feng ,  WANG, Shihua ,  SONG, Haiwen ,  LIU, Hailong ,  LI, Longqiang ,  CUI, Debao ,  ZHANG, Song ,  ZHAO, Xiaodong ,  WU, Zhichao ,  WANG, Xuhao

IPC分类号： C07C253/32 ,  C07C255/46 ,  C07C233/52 ,  C07C231/12 ,  C07C57/145 ,  C07C253/30 ,  C07C253/34

公开(公告)号：EP3998251A1

公开(公告)日：2022-05-18

申请号：EP21836310.9

申请日：2021-07-09

申请人： LG Chem, Ltd.

发明人： SHIN, Sang Cheol ,  KO, Jun Seok ,  CHO, Yong Heon ,  SHIN, Joon Ho

IPC分类号： C07C253/02 ,  C07C253/32 ,  C07C255/08

摘要： Provided is a recovery method of a nitrile-based monomer, specifically, a recovery method of a nitrile-based monomer including: supplying a feed stream including a nitrile-based monomer, a nitrogen compound, and water to a first distillation tower to separate the stream into a lower discharge stream including water and an upper discharge stream including the nitrile-based monomer, the nitrogen compound, and water (S10); condensing the upper discharge stream of the first distillation tower and supplying the condensed stream to a decanter to separate the stream into a water layer and an organic layer including the nitrile-based monomer and the nitrogen compound (S20); supplying an organic layer stream discharged from the decanter to a second distillation tower to separate the stream into a lower discharge stream including the nitrogen compound and an upper discharge stream including the nitrile-based monomer and the nitrogen compound (S30); and splitting a part of the upper discharge stream from the second distillation tower and refluxing the split stream to the second distillation tower (S40), is provided.

公开(公告)号：EP2687505B1

公开(公告)日：2018-04-04

申请号：EP12760109.4

申请日：2012-01-19

申请人： LG Chem, Ltd.

发明人： LEE, Byoung-Bae ,  OH, Jae-Seung ,  SHIM, You-Jin ,  HONG, Yeon-Suk

IPC分类号： C07C253/32 ,  C07C255/09 ,  B01J31/12 ,  C07B61/00

CPC分类号： C07C253/30 ,  B01J31/0212 ,  B01J2231/32 ,  C07C255/13

摘要： Disclosed is a method for preparing a dinitrile compound. The method includes reacting an alcohol compound with a nitrile compound having a terminal carbon-carbon unsaturated bond under anhydrous conditions. A potassium alkoxide having 1 to 5 carbon atoms is used as a catalyst in the course of the reaction. According to the method, a high-purity dinitrile compound can be prepared in a simple manner within a short reaction time indicating high productivity.

公开(公告)号：EP2774908B1

公开(公告)日：2017-02-08

申请号：EP11875211.2

申请日：2011-11-04

申请人： Takasago International Corporation

发明人： NARA, Hideki ,  HASEGAWA, Yoshiki

IPC分类号： C07C29/74 ,  C07C33/22 ,  C07C253/32 ,  C07C255/53 ,  C07B53/00 ,  C07B61/00

CPC分类号： C07C29/94 ,  C07B53/00 ,  C07C29/74 ,  C07C253/32 ,  C07C33/22 ,  C07C255/53

摘要： The present invention provides a method for producing a reduction reaction product, wherein recovery of the reaction solvent and/or distillation is carried out after adding a nitrogen-containing compound into a reaction liquid of a reduction reaction that has been conducted using a transition metal complex. The present invention is capable of suppressing decrease in the optical purity of the reduction reaction product due to the transition metal complex used as a catalyst.

公开(公告)号：EP2655319A1

公开(公告)日：2013-10-30

申请号：EP11807900.3

申请日：2011-12-19

申请人： Bayer Intellectual Property GmbH

发明人： VOLZ, Frank ,  SCHNATTERER, Albert ,  KAPTEIN, Bernardus ,  CASTELIJNS, Anna, Maria, Cornelia, Francisca

IPC分类号： C07C253/32 ,  C07C255/46

CPC分类号： C07C255/46 ,  C07C253/30 ,  C07C2601/14

摘要： The present invention relates to a novel process for the preparation of cis-1-ammonium-4-alkoxycyclohexanecarbonitrile salts and to novel intermediates or starting compounds which are passed through or used in the process according to the invention.

摘要翻译： 本发明涉及一种制备顺式-1-铵-4-烷氧基环己烷甲腈盐的新方法以及通过本发明方法或用于本发明方法的新中间体或起始化合物。

公开(公告)号：EP1896387B1

公开(公告)日：2012-02-22

申请号：EP06771199.4

申请日：2006-05-24

申请人： Chemtura USA Corporation

发明人： MA, Qinggao ,  WORTMAN, William A. ,  WANG, Jay ,  STOTT, Paul E.

IPC分类号： C08F2/42 ,  C07C7/20 ,  C07B63/04 ,  C07C67/62 ,  C07C51/50 ,  C09K15/20 ,  C08L25/00 ,  C08L33/00 ,  C08F2/40 ,  C07C253/32 ,  C07C17/42

CPC分类号： C07B63/04 ,  C07C7/20 ,  C07C17/42 ,  C07C51/50 ,  C07C67/62 ,  C07C253/32 ,  C08F2/40 ,  C08F2/42 ,  C07C15/46 ,  C07C21/21 ,  C07C57/04 ,  C07C69/54 ,  C07C255/08

摘要： Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of at least one nitroso inhibitor of the structure: Formula (I) wherein R1, R2, R3, and R4 are independently selected from the group consisting of hydrogen, nitro, nitroso, halogen, COOR wherein R is hydrogen or alkyl, alkyl, and heteroatom- substituted alkyl; or adjacent groups R1, R2, R3, and R4 can be taken together to form a substituted or unsubstituted fused six-membered ring. Also disclosed is a composition of matter comprising: A) an ethylenically unsaturated monomer and B) at least one nitroso compound of the above-described structure.

公开(公告)号：EP2030963A3

公开(公告)日：2009-05-20

申请号：EP08168030.8

申请日：1998-07-14

申请人： Ciba Holding Inc.

发明人： Cunkle, Glen, Thomas ,  Gande, Matthew, Edward ,  Seltzer, Raymond ,  Thompson, Thomas, Friend

IPC分类号： C07C51/50 ,  C07C57/04 ,  C07C69/54 ,  C07C67/62 ,  C07C69/15 ,  C07C231/22 ,  C07C233/09 ,  C07C253/32 ,  C07C255/08 ,  C07B63/04 ,  C07D211/94

CPC分类号： C07C231/22 ,  C07B63/04 ,  C07C51/50 ,  C07C67/62 ,  C07C253/32 ,  C07C303/42 ,  C07D211/94 ,  C07C57/04 ,  C07C69/54 ,  C07C69/01 ,  C07C309/24 ,  C07C255/08 ,  C07C233/09 ,  C07C69/15

摘要： The invention relates to selected derivatives of 1-oxyl-2,2,6,6-tetramethyl-4-hydroxy-piperidine and 1-oxyl-2,2,6,6-tetramethyl-4-aminopiperidine, which are effective as inhibitors to prevent the premature polymerization of acrylic and methacrylic acids, their esters, their amides, vinyl acetate and acrylonitrile in the presence of water.

摘要翻译： 本发明涉及1-氧基-2,2,6,6-四甲基-4-羟基 - 哌啶和1-氧基-2,2,6,6-四甲基-4-氨基哌啶的选择性衍生物，其作为抑制剂是有效的 以防止丙烯酸和甲基丙烯酸，它们的酯，它们的酰胺，乙酸乙烯酯和丙烯腈在水存在下的过早聚合。

公开(公告)号：EP1095006B1

公开(公告)日：2008-12-24

申请号：EP98936423.7

申请日：1998-07-14

申请人： Ciba Holding Inc.

发明人： CUNKLE, Glen, Thomas ,  GANDE, Matthew, Edward ,  SELTZER, Raymond ,  THOMPSON, Thomas, Friend

IPC分类号： C07C51/50 ,  C07C57/04 ,  C07C69/54 ,  C07C67/62 ,  C07C69/15 ,  C07C231/22 ,  C07C233/09 ,  C07C253/32 ,  C07C255/08 ,  C07B63/04 ,  C07D211/94

CPC分类号： C07C231/22 ,  C07B63/04 ,  C07C51/50 ,  C07C67/62 ,  C07C253/32 ,  C07C303/42 ,  C07D211/94 ,  C07C57/04 ,  C07C69/54 ,  C07C69/01 ,  C07C309/24 ,  C07C255/08 ,  C07C233/09 ,  C07C69/15

摘要： Selected derivatives of 1-oxyl-2,2,6,6-tetramethyl-4-hydroxypiperidine and 1-oxyl-2,2,6,6-tetramethyl-4-aminopiperidine are surprisingly effective as inhibitors to prevent the premature polymerization of acrylic and methacrylic acids, their esters, their amides, vinyl acetate and acrylonitrile in the presence of water. Some of these derivatives are new compounds.

公开(公告)号：EP1641736A1

公开(公告)日：2006-04-05

申请号：EP04763011.6

申请日：2004-06-19

申请人： BASF Aktiengesellschaft

发明人： STÜER, Wolfram ,  SCHEIDEL, Jens ,  BASSLER, Peter ,  RÖPER, Michael

IPC分类号： C07C51/44 ,  C07C67/54 ,  C07C231/24 ,  C07C253/32

CPC分类号： C07C67/54 ,  C07C51/44 ,  C07C231/24 ,  C07C253/32 ,  C07C253/34 ,  C07C255/08 ,  C07C255/03 ,  C07C255/20

摘要： The invention relates to a distillation method for isolating a compound comprising at least two functional groups, selected independently of one another from a group consisting of a nitrile group, carboxylic acid group, carboxylic acid ester group and a carboxamide group from a mixture containing a compound comprising at least two functional groups, selected independently of one another from a group consisting of a nitrile group, carboxylic acid group, carboxylic acid ester group and a carboxamide group and a rhodium containing compound that is homogeneous in the mixture.

公开(公告)号：EP1130013B1

公开(公告)日：2003-10-29

申请号：EP01810209.5

申请日：2001-03-01

申请人： Clariant GmbH

发明人： Fell, Rainer ,  Wilbert, Götz ,  Stährfeldt, Thomas

IPC分类号： C07C255/24 ,  C07C253/16 ,  C07C253/32 ,  C07C253/00

CPC分类号： C07C253/32 ,  C07C253/00 ,  C07C255/25