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1.发明公开公开(公告)号：US20230399278A1
公开(公告)日：2023-12-14
申请号：US18250587
申请日：2021-11-30
Applicant: Eastman Chemical Company
Inventor： Mesfin Ejerssa Janka , Robert Thomas Hembre
IPC: C07C29/145 , B01J31/22 , B01J31/20
CPC classification number: C07C29/145 , B01J31/2295 , B01J31/20 , B01J2531/821 , B01J2531/0208 , B01J2231/643
Abstract: Disclosed is a process for preparing 2,2,4,4-tetramethylcyclobutane-1,3-diol by reacting 2,2,4,4-tetramethylcyclobutane dione with isobutanol in the presence of a tandem transfer hydrogenation and Tischenko reaction catalyst.
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公开(公告)号：US10829429B2
公开(公告)日：2020-11-10
申请号：US16188958
申请日：2018-11-13
Applicant: Eastman Chemical Company
Inventor： Sumit Chakraborty , Steven J. Adams , Robert Thomas Hembre , Scott Donald Barnicki , David Alan Jenkins
IPC: C07C67/03 , B01J27/232 , B01J31/02 , C07C69/708
Abstract: A process for the transesterification of methyl-2-ethylhexanoate with triethylene glycol to produce triethylene glycol di-2-ethylhexanoate is provided. In the process, methyl-2-ethylhexanoate is combined with triethylene glycol to form a first mixture. The first mixture is heated in the presence of a catalyst to form a second mixture comprising methanol and triethylene glycol di-2-ethylhexanoate. Methanol is separated from the second mixture to yield triethylene glycol di-2-ethylhexanoate. Na2CO3, Cs2CO3, K2CO3, Rb2CO3, sodium methoxide or titanium isopropoxide are suitable catalysts.
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公开(公告)号：US20200148619A1
公开(公告)日：2020-05-14
申请号：US16188958
申请日：2018-11-13
Applicant: Eastman Chemical Company
Inventor： Sumit Chakraborty , Steven J. Adams , Robert Thomas Hembre , Scott Donald Barnicki , David Alan Jenkins
IPC: C07C67/03 , B01J31/02 , B01J27/232
Abstract: A process for the transesterification of methyl-2-ethylhexanoate with triethylene glycol to produce triethylene glycol di-2-ethylhexanoate is provided. In the process, methyl-2-ethylhexanoate is combined with triethylene glycol to form a first mixture. The first mixture is heated in the presence of a catalyst to form a second mixture comprising methanol and triethylene glycol di-2-ethylhexanoate. Methanol is separated from the second mixture to yield triethylene glycol di-2-ethylhexanoate. Na2CO3, Cs2CO3, K2CO3, Rb2CO3, sodium methoxide or titanium isopropoxide are suitable catalysts.
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公开(公告)号：US10590062B1
公开(公告)日：2020-03-17
申请号：US16188976
申请日：2018-11-13
Applicant: Eastman Chemical Company
Inventor： Sumit Chakraborty , Steven J. Adams , Robert Thomas Hembre , Leslie Sharon Depew
IPC: C07C67/39 , C07C67/44 , B01J31/22 , C07C69/003 , C07C69/013
Abstract: A process for making methyl esters in high yields is provided. The process comprises contacting aliphatic or aromatic aldehydes and methanol with an iron catalyst, to catalyze the dehydrogenative coupling between aliphatic or aromatic aldehydes and methanol. The reaction is highly selective (
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公开(公告)号：US10435349B2
公开(公告)日：2019-10-08
申请号：US16043308
申请日：2018-07-24
Applicant: Eastman Chemical Company
Inventor： Sumit Chakraborty , Steven J. Adams , Robert Thomas Hembre , Scott Donald Barnicki , Michael Richard Laningham , Gerarld Wayne Ollis , Randy Lynn Jennings
IPC: C07C69/013 , C07C69/003 , C07C67/00 , C07F17/00 , C07F15/00 , B01J31/24 , C07F15/02 , B01J31/18 , B01J31/20
Abstract: A process for preparing a variety of secondary and tertiary alkyl formate esters via the coupling of methanol and secondary (or tertiary) alcohols. Iron-based catalysts, supported by pincer ligands, are employed to produce these formate esters in high yields and unprecedentedly high selectivities (>99%). Remarkably, the coupling strategy is also applicable to bulkier tertiary alcohols, which afford corresponding tertiary formate esters in moderately high yields and high selectivities.
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Patent Agency Ranking
公开(公告)号：US10011485B2
公开(公告)日：2018-07-03
申请号：US15440056
申请日：2017-02-23
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： Scott Donald Barnicki , Robert Thomas Hembre , Elaine Beatrice MacKenzie , Joy Lynn Laningham , Michael Richard Laningham , Shane Kipley Kirk , Larry Wayne Blair , Sumit Chakraborty , Venkateswarlu Bhamidi , Guoxiong Hua , John Derek Woollins
IPC: C01B17/02 , C01B17/12 , C07D341/00
CPC classification number: C01B17/0253 , C01B17/0243 , C01B17/12 , C07D341/00
Abstract: The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
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公开(公告)号：US09493395B2
公开(公告)日：2016-11-15
申请号：US14680595
申请日：2015-04-07
Applicant: Eastman Chemical Company
Abstract: Disclosed is a process for preparing two esters by reacting an aldehyde with an alcohol in the presence of a ruthenium complex compound as a catalyst. The process is particularly useful for preparing ethyl acetate and n-butyl acetate, isobutyl acetate, or 2-ethylhexyl acetate in high yield by coupling acetaldehyde with n-butanol, i-butanol, or 2-ethylhexanol.
Abstract translation: 公开了一种通过在钌络合物化合物作为催化剂存在下使醛与醇反应来制备两种酯的方法。 通过将乙醛与正丁醇，异丁醇或2-乙基己醇偶联，可以高产率制备乙酸乙酯和乙酸正丁酯，乙酸异丁酯或乙酸2-乙基己酯。
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公开(公告)号：US20160297741A1
公开(公告)日：2016-10-13
申请号：US14680595
申请日：2015-04-07
Applicant: Eastman Chemical Company
IPC: C07C67/44
Abstract: Disclosed is a process for preparing two esters by reacting an aldehyde with an alcohol in the presence of a ruthenium complex compound as a catalyst. The process is particularly useful for preparing ethyl acetate and n-butyl acetate, isobutyl acetate, or 2-ethylhexyl acetate in high yield by coupling acetaldehyde with n-butanol, i-butanol, or 2-ethylhexanol.
Abstract translation: 公开了一种通过在钌络合物化合物作为催化剂存在下使醛与醇反应来制备两种酯的方法。 通过将乙醛与正丁醇，异丁醇或2-乙基己醇偶联，可以高产率制备乙酸乙酯和乙酸正丁酯，乙酸异丁酯或乙酸2-乙基己酯。
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公开(公告)号：US20160229774A1
公开(公告)日：2016-08-11
申请号：US15133561
申请日：2016-04-20
Applicant: Eastman Chemical Company
Inventor： Robert Thomas Hembre , Venkata Bharat Ram Boppana , Scott Donald Barnicki , Shane Kipley Kirk
IPC: C07C31/135
CPC classification number: C07C31/1355 , C07C29/149 , C07C51/36 , C07C2601/14 , C07C61/08 , C07C61/09 , C07C31/276
Abstract: This invention relates to hydrogenation processes for making cyclohexane compounds. More specifically, this invention relates to hydrogenation processes in the presence of tertiary amide solvent compounds, as well as compositions that can result from such processes. The invention thus provides processes for making cyclohexanecarboxylic acid compounds and processes for making hydroxymethylcyclohexane compounds.
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公开(公告)号：US09346737B2
公开(公告)日：2016-05-24
申请号：US14143914
申请日：2013-12-30
Applicant: Eastman Chemical Company
Inventor： Robert Thomas Hembre , Venkata Bharat Ram Boppana , Scott Donald Barnicki , Shane Kipley Kirk
IPC: C07C51/36 , C07C29/149
CPC classification number: C07C31/1355 , C07C29/149 , C07C51/36 , C07C2601/14 , C07C61/08 , C07C61/09 , C07C31/276
Abstract: This invention relates to hydrogenation processes for making cyclohexane compounds. More specifically, this invention relates to hydrogenation processes in the presence of tertiary amide solvent compounds, as well as compositions that can result from such processes. The invention thus provides processes for making cyclohexanecarboxylic acid compounds and processes for making hydroxymethylcyclohexane compounds.
Abstract translation: 本发明涉及制备环己烷化合物的氢化方法。 更具体地，本发明涉及在叔酰胺溶剂化合物存在下的氢化方法，以及可由此类方法产生的组合物。 因此，本发明提供了制备环己烷羧酸化合物的方法和制备羟甲基环己烷化合物的方法。
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