公开(公告)号：US20210347721A1

公开(公告)日：2021-11-11

申请号：US17261967

申请日：2019-07-24

申请人： KURARAY CO., LTD.

发明人： Naoya MINAMOTO ,  Yusuke MURATA

IPC分类号： C07C67/297

摘要： A method for producing a 1,3-bisacyloxy-2-methylenepropane represented by the following general formula (II), including reacting a carboxylic acid represented by the following general formula (I), isobutylene, and oxygen, in a liquid phase, in the presence of a catalyst containing a carrier having carried thereon palladium and a transition metal of Group 11 in the periodic table, and a catalyst activator.

公开(公告)号：US20210032548A1

公开(公告)日：2021-02-04

申请号：US16975322

申请日：2019-02-20

申请人： KURARAY CO., LTD.

发明人： Naoya MINAMOTO ,  Yuusuke SAITOU ,  Takuo TSURUTA

IPC分类号： C10G29/24 ,  B01D53/52 ,  C10L3/10

摘要： Provided is a composition for removing a sulfur-containing compound contained in at least one of a liquid and gas, the sulfur-containing compound being at least one selected from the group consisting of hydrogen sulfide and an —SH group-containing compound, the composition containing an aldehyde and an amine whose conjugate acid has a pKa value of 11.3 or higher in water at 25° C.

公开(公告)号：US20210292268A1

公开(公告)日：2021-09-23

申请号：US17259613

申请日：2019-07-24

申请人： KURARAY CO., LTD.

发明人： Naoya MINAMOTO ,  Yusuke MURATA

IPC分类号： C07C67/055

摘要： A method for producing a 1-acyloxy-2-methyl-2-propene represented by the following general formula (II), including reacting a carboxylic acid represented by the following general formula (I), isobutylene, and oxygen, in the presence of a catalyst, in a liquid phase, with an amount of the isobutylene used of more than 1 mol and 50 mol or less per 1 mol of the carboxylic acid.

公开(公告)号：US20170369411A1

公开(公告)日：2017-12-28

申请号：US15538443

申请日：2015-12-17

申请人： KURARAY CO., LTD.

发明人： Takuo TSURUTA ,  Ryosuke SHIMIZU ,  Takahiro HOSONO ,  Naoya MINAMOTO

IPC分类号： C07C45/42 ,  C07C45/59 ,  C07C47/12 ,  C07D317/12

CPC分类号： C07C45/42 ,  C07C45/59 ,  C07C47/12 ,  C07D317/12

摘要： Provided are a method for producing 3-methylglutaraldehyde in a good yield under a mild condition and a novel acetal compound which is useful for carrying out the foregoing method. The method is a production method of 3-methylglutaraldehyde including a step of hydrolyzing a compound represented by the following general formula (1): wherein R1 and R2 each independently represent an alkyl group having 1 to 6 carbon atoms, or are mutually coupled to represent an alkylene group having 2 to 6 carbon atoms.

公开(公告)号：US20200283367A1

公开(公告)日：2020-09-10

申请号：US16627484

申请日：2018-07-23

申请人： KURARAY CO., LTD.

发明人： Yusuke MURATA ,  Naoya MINAMOTO ,  Mitsumasa KANEKO ,  Ryosuke SHIMIZU

IPC分类号： C07C67/05

摘要： A method of producing a bis-acyloxylated exomethylene compound represented by general formula (III), including reacting a monoacyloxylated exomethylene compound represented by general formula (I), a carboxylic acid represented by general formula (II), and oxygen in a liquid phase in the presence of a catalyst and optionally a solvent:

公开(公告)号：US20190023636A1

公开(公告)日：2019-01-24

申请号：US16081283

申请日：2017-02-23

申请人： KURARAY CO., LTD.

发明人： Takuo TSURUTA ,  Naoya MINAMOTO ,  Toshihiro OMATSU

IPC分类号： C07C45/50 ,  C07C47/12 ,  B01J31/22

摘要： A method of producing 1,5-pentanedial having an alkyl group at the 3-position, including a step of hydroformylating an aldehyde compound represented by the following general formula (1): wherein R1 represents an alkyl group having from 1 to 6 carbon atoms.