公开(公告)号：US20230406808A1

公开(公告)日：2023-12-21

申请号：US18037179

申请日：2021-11-17

申请人： Regents of the University of Minnesota

发明人： Paul Jakob Dauenhauer ,  Yutong Pang

IPC分类号： C07C67/327 ,  B01J29/08

CPC分类号： C07C67/327 ,  B01J29/084 ,  B01J2229/37

摘要： A catalyst composition includes a solid acid catalyst having a multiplicity of acid sites on the surfaces and a multifunctional component coupled to the surfaces of the solid acid catalyst. Each multifunctional component includes at least two functional groups configured to accept a proton from an acid site of the multiplicity of acid sites. The catalyst composition can be used to dehydrate lactic acid, a lactic acid ester, a lactic acid salt, or a combination thereof, to yield a product comprising acrylic acid, an acrylic acid ester, an acrylic acid salt, or a combination thereof.

公开(公告)号：US11518729B2

公开(公告)日：2022-12-06

申请号：US17378936

申请日：2021-07-19

申请人： Shin-Etsu Chemical Co., Ltd.

发明人： Tomohiro Watanabe ,  Takeshi Kinsho ,  Miyoshi Yamashita

IPC分类号： C07C67/327 ,  C07C69/593 ,  C07C67/313

摘要： The present invention provides a process for preparing a compound of the following general formula (2): wherein R1 represents a monovalent hydrocarbon group having 1 to 10 carbon atoms, and R3 represents a hydrogen atom or a methyl group, the process comprising: subjecting a compound of the following general formula (1): wherein R1 and R2 represent, independently of each other, a monovalent hydrocarbon group having 1 to 10 carbon atoms, R3 represents a hydrogen atom or a methyl group, and the wavy bond represents an E-configuration, a Z-configuration, or a mixture thereof, to a Dieckmann condensation in the presence of base to form the compound (2).

公开(公告)号：US20220024846A1

公开(公告)日：2022-01-27

申请号：US17378936

申请日：2021-07-19

申请人： Shin-Etsu Chemical Co., Ltd.

发明人： Tomohiro Watanabe ,  Takeshi Kinsho ,  Miyoshi Yamashita

IPC分类号： C07C67/327

摘要： The present invention provides a process for preparing a compound of the following general formula (2): wherein R1 represents a monovalent hydrocarbon group having 1 to 10 carbon atoms, and R3 represents a hydrogen atom or a methyl group, the process comprising: subjecting a compound of the following general formula (1): wherein R1 and R2 represent, independently of each other, a monovalent hydrocarbon group having 1 to 10 carbon atoms, R3 represents a hydrogen atom or a methyl group, and the wavy bond represents an E-configuration, a Z-configuration, or a mixture thereof, to a Dieckmann condensation in the presence of base to form the compound (2).

公开(公告)号：US20210323904A1

公开(公告)日：2021-10-21

申请号：US17273357

申请日：2019-12-16

申请人： FIRMENICH SA

发明人： Denis Jacoby ,  Lucia Bonomo

IPC分类号： C07C67/327 ,  C07C69/716

摘要： Described herein is a process for the preparation of a mixture of compounds of formula having a weight ratio of the cis-diastereomers to trans-diastereoisomers higher than 1:1, where R1 represents a C1-8 alkyl group, a C2-8 alkenyl group or a C2-8 alkynyl group, each optionally substituted with one or two of a C1-4 alkyl alkoxy ether group and/or a C1-4 alkyl carboxylester group and R2 represents a C1-6 alkyl, a C2-6 alkenyl or a C2-6 alkynyl group, each optionally substituted with a C1-4 alkyl alkoxy ether group, a carboxylic acid group or a C1-4 alkyl carboxylester group and compounds suitable in the process.

公开(公告)号：US20200223780A1

公开(公告)日：2020-07-16

申请号：US16837480

申请日：2020-04-01

申请人： CARGILL, INCORPARATED

发明人： Timothy Walter ABRAHAM ,  Ravi R. Gokarn

IPC分类号： C07C67/327 ,  C07C67/03 ,  C07C67/54

摘要： A method for producing esters of an alpha, beta-unsaturated carboxylic acid are disclosed, the method includes reacting a three or four carbon beta-hydroxyalkanoate composition or mixtures thereof with a mono-alcohol under heating conditions to form a reaction product and distilling the reaction product to recover a composition containing at least fifty percent by weight of the ester of the alpha, beta-unsaturated carboxylic acid.

公开(公告)号：US20180009736A1

公开(公告)日：2018-01-11

申请号：US15546074

申请日：2016-01-28

申请人： Arkema France

发明人： Yves CABON ,  Fanny DUBUT ,  Benoit RIFLADE

IPC分类号： C07C213/06 ,  C07C67/03 ,  C07C213/10 ,  C07C67/327 ,  C07C67/54 ,  C07C219/08 ,  C08F20/18 ,  B01D3/14

CPC分类号： C07C213/06 ,  B01D3/143 ,  C07C67/03 ,  C07C67/327 ,  C07C67/54 ,  C07C213/10 ,  C07C219/08 ,  C08F20/18 ,  Y02P20/51 ,  Y02P20/582 ,  C07C69/54

摘要： The invention relates to a method for producing a (meth)acrylic ester with improved productivity, by transesterfication of a light alkyl (meth)acrylate with a heavy alcohol. The method of the invention includes the recycling of noble products recovered after the thermal treatment of heavy fractions generated during the synthesis, said thermal treatment being carried out in the presence of a dialkyl phthalate, the alkyl chain of which corresponds to that of the light alkyl (meth)acrylate. The invention applies to the production of N,N-dimethyaminoethyl acrylate from ethyl acrylate.

公开(公告)号：US09796651B2

公开(公告)日：2017-10-24

申请号：US14906292

申请日：2014-07-24

申请人： Arkema France

发明人： Michel Fauconet ,  Roger L. Roundy ,  Stephane Denis ,  Samuel M. Daniel

IPC分类号： C07C67/08 ,  C07C67/327 ,  C07C51/09 ,  C07C67/54 ,  C07C67/62

CPC分类号： C07C67/08 ,  C07C51/09 ,  C07C67/327 ,  C07C67/54 ,  C07C67/62 ,  Y02P20/582 ,  C07C69/54 ,  C07C57/04

摘要： The present invention relates to methods by which the thermal dissociation of Michael adducts present in a stream of crude acrylic acid, called “crude ester grade”, and the esterification reaction of acrylic acid present in the stream of crude acrylic acid, or generated in situ by thermal dissociation, with a light alcohol, are carried out simultaneously.

公开(公告)号：US09676692B2

公开(公告)日：2017-06-13

申请号：US14584642

申请日：2014-12-29

申请人： NISSAN CHEMICAL INDUSTRIES, LTD.

发明人： Manabu Yaosaka ,  Tomohisa Utsunomiya ,  Yuji Moriyama ,  Tomohiro Matsumoto ,  Kazutaka Matoba

IPC分类号： C07C45/72 ,  C07C51/353 ,  C07C231/12 ,  C07D213/04 ,  C07C67/343 ,  C07D249/08 ,  C07D233/60 ,  C07D401/04 ,  C07D413/12 ,  C07D413/14 ,  C07C67/327 ,  C07C45/66 ,  C07C45/74 ,  C07C51/367 ,  C07C51/377

CPC分类号： C07C45/72 ,  C07C45/66 ,  C07C45/74 ,  C07C49/83 ,  C07C49/835 ,  C07C51/353 ,  C07C51/367 ,  C07C51/377 ,  C07C65/40 ,  C07C67/327 ,  C07C67/343 ,  C07C67/347 ,  C07C69/65 ,  C07C231/12 ,  C07C253/30 ,  C07C319/20 ,  C07D213/30 ,  C07D213/50 ,  C07D213/61 ,  C07D233/14 ,  C07D249/08 ,  C07D261/04 ,  C07D401/04 ,  C07C323/22 ,  C07C235/84 ,  C07C255/56 ,  C07C69/76 ,  C07C49/813 ,  C07C65/38

摘要： There is provided a novel intermediate for producing pesticides. A method for producing the compound of Formula (3) comprises reacting an aromatic ketone compound of Formula (4) and a substituted acetophenone compound of Formula (5) as starting raw materials in an organic solvent or water in the presence or absence of an additive in the presence of a base in a suspended state. A method may comprise dehydrating the compound of Formula (3). A method for producing compound (2) in one step comprises reacting compound (4) and compound (5) to obtain compound (3). Further, a method for producing an isoxazoline compound of Formula (1) comprises reacting compound (2) and a hydroxylamine in an aliphatic or an aromatic hydrocarbon solvent which is optionally substituted by a halogen atom by adding an additive selected from a phase-transfer catalyst, a C1-C6 alcohol and an aprotic polar solvent in the presence of a base and water.

公开(公告)号：US20170050913A1

公开(公告)日：2017-02-23

申请号：US15219655

申请日：2016-07-26

申请人： Shin-Etsu Chemical Co., Ltd.

发明人： Takeshi Kinsho ,  Naoki Ishibashi ,  Shinnosuke Wakamori ,  Miyoshi Yamashita

IPC分类号： C07C69/587 ,  C07C29/147 ,  C07C67/40 ,  C07C67/327

CPC分类号： C07C69/587 ,  C07C29/14 ,  C07C29/147 ,  C07C67/08 ,  C07C67/327 ,  C07C67/40 ,  C07C69/145 ,  C07C33/02

摘要： Provided is a geometrically selective method for producing (±)-(E)-2-isopropyl-5-methyl-3,5-hexadienyl acetate, which is a sex pheromone of grape pineapple mealybug (GPMB). Specifically provided is a method for producing a an (E)-2-isopropyl-5-methyl-3,5-hexadienyl carboxylate compound (4), the method comprising the steps of: dehydrating a 3-hydroxy-2-isopropyl-5-methyl-4-hexenoate compound (1) to obtain an (E)-2-isopropyl-5-methyl-3,5-hexadienoate compound (2); reducing the alkoxycarbonyl group of the compound (2) to obtain (E)-2-isopropyl-5-methyl-3,5-hexadienol (3); and esterifying the compound (3) to obtain the compound (4).

摘要翻译： 提供了一种几何选择性的方法，用于生产（±） - （E）-2-异丙基-5-甲基-3,5-己二酸乙酸酯，其是葡萄菠萝甲酸杆菌（GPMB）的性信息素。 具体提供的是（E）-2-异丙基-5-甲基-3,5-戊二烯基羧酸酯化合物（4）的制备方法，该方法包括以下步骤：使3-羟基-2-异丙基-5 （E）-2-异丙基-5-甲基-3,5-己二烯酸酯化合物（2），得到（E）-2-异丙基-5-甲基-3,5-己二烯酸酯化合物 还原化合物（2）的烷氧基​​羰基，得到（E）-2-异丙基-5-甲基-3,5-己二醇（3）; 并酯化化合物（3）以得到化合物（4）。

公开(公告)号：US20170015615A1

公开(公告)日：2017-01-19

申请号：US15124492

申请日：2015-04-08

申请人： MITSUBISHI GAS CHEMICAL COMPANY, INC.

发明人： Saori HIROKAWA ,  Katsumi HIGUCHI ,  Yuuichi SUGANO

IPC分类号： C07C67/327 ,  B01J21/16 ,  B01J29/08

CPC分类号： C07C67/327 ,  B01J21/16 ,  B01J29/08 ,  C07C69/54

摘要： The present invention provides a molded catalyst for use in the manufacture of methyl methacrylate, for manufacturing methyl methacrylate from a starting material of methyl α-hydroxyisobutyrate by a vapor phase contact reaction, wherein the molded catalyst for use in the manufacture of methyl methacrylate is characterized in that the molded catalyst includes a synthetic faujasite type zeolite, a lamellar aluminum silicate compound, and a synthetic lamellar magnesium silicate compound, the weight ratio of the lamellar aluminum silicate compound and the synthetic lamellar magnesium silicate compound being 1:5 to 6:1.

摘要翻译： 本发明提供一种用于制造甲基丙烯酸甲酯的模制催化剂，用于通过气相接触反应从α-羟基异丁酸甲酯的原料制备甲基丙烯酸甲酯，其中用于制备甲基丙烯酸甲酯的模塑催化剂被表征 因为模制催化剂包括合成八面沸石型沸石，层状硅酸铝化合物和合成层状硅酸镁化合物，层状硅酸铝化合物和合成层状硅酸镁化合物的重量比为1:5至6:1 。