公开(公告)号：US20210047285A1

公开(公告)日：2021-02-18

申请号：US17087926

申请日：2020-11-03

申请人： Wisconsin Alumni Research Foundation

发明人： Shannon Stahl ,  Stephen Tereniak

IPC分类号： C07D333/22 ,  C07D277/32 ,  B01J31/18 ,  C07D333/54 ,  B01J31/24 ,  B01J31/04 ,  B01J31/22

摘要： An oxidative homocoupling method of synthesizing certain 2,2′-bithiophenes from thiophenes using oxygen as the terminal oxidant is disclosed. In non-limiting examples, the method uses oxygen along with a catalytic system that includes palladium, an assistive ligand, and a non-palladium metal additive to catalyze one of the following reactions: Associated catalytic systems and compositions are also disclosed.

公开(公告)号：US10858334B2

公开(公告)日：2020-12-08

申请号：US16243394

申请日：2019-01-09

申请人： Wisconsin Alumni Research Foundation

发明人： Shannon Stahl ,  Stephen Tereniak

IPC分类号： C07D333/22 ,  C07D277/32 ,  B01J31/18 ,  C07D333/54 ,  B01J31/24 ,  B01J31/04 ,  B01J31/22

摘要： An oxidative homocoupling method of synthesizing certain 2,2′-bithiophenes from thiophenes using oxygen as the terminal oxidant is disclosed. In non-limiting examples, the method uses oxygen along with a catalytic system that includes palladium, an assistive ligand, and a non-palladium metal additive to catalyze one of the following reactions: Associated catalytic systems and compositions are also disclosed.

公开(公告)号：US20190210993A1

公开(公告)日：2019-07-11

申请号：US16243394

申请日：2019-01-09

申请人： Wisconsin Alumni Research Foundation

发明人： Shannon Stahl ,  Stephen Tereniak

IPC分类号： C07D333/22 ,  C07D277/32 ,  B01J31/18 ,  C07D333/54

CPC分类号： C07D333/22 ,  B01J31/181 ,  B01J31/1825 ,  B01J31/183 ,  C07D277/32 ,  C07D333/54

摘要： An oxidative homocoupling method of synthesizing certain 2,2′-bithiophenes from thiophenes using oxygen as the terminal oxidant is disclosed. In non-limiting examples, the method uses oxygen along with a catalytic system that includes palladium, an assistive ligand, and a non-palladium metal additive to catalyze one of the following reactions: Associated catalytic systems and compositions are also disclosed.

公开(公告)号：US20220127217A1

公开(公告)日：2022-04-28

申请号：US17436202

申请日：2020-03-06

申请人： Wisconsin Alumni Research Foundation

发明人： Shannon Stahl ,  Hao Luo

IPC分类号： C07C51/31 ,  C07C45/59 ,  B01J35/04 ,  B01J31/18

摘要： Methods of depolymerizing lignin and products obtained therefrom. The methods include reacting lignin in a liquid solvent comprising an oxidation catalyst with the solvent being in contact with 02 gas. The solvent can include aprotic polar solvents. The oxidation catalyst can include heterogeneous catalysts. The methods can be used in the oxidative catalytic fractionation of raw biomass to generate soluble aromatic monomers and a solid carbohydrate residue. Depolymerized lignin products include phenolic and benzoquinone monomers, such as p-hydroxybenzoic acid, vanillin, syringaldehyde, vanillic acid, and/or syringic acid.

公开(公告)号：US11773074B2

公开(公告)日：2023-10-03

申请号：US17087926

申请日：2020-11-03

申请人： Wisconsin Alumni Research Foundation

发明人： Shannon Stahl ,  Stephen Tereniak

IPC分类号： C07D333/22 ,  B01J31/04 ,  C07D277/32 ,  B01J31/18 ,  C07D333/54 ,  B01J31/24 ,  B01J31/22

CPC分类号： C07D333/22 ,  B01J31/04 ,  B01J31/181 ,  B01J31/183 ,  B01J31/184 ,  B01J31/1815 ,  B01J31/1825 ,  B01J31/2239 ,  B01J31/2409 ,  C07D277/32 ,  C07D333/54 ,  B01J2231/46 ,  B01J2531/0205 ,  B01J2531/16 ,  B01J2531/824 ,  B01J2531/842 ,  B01J2540/10 ,  B01J2540/22 ,  B01J2540/225 ,  B01J2540/40

摘要： An oxidative homocoupling method of synthesizing certain 2,2′-bithiophenes from thiophenes using oxygen as the terminal oxidant is disclosed. In non-limiting examples, the method uses oxygen along with a catalytic system that includes palladium, an assistive ligand, and a non-palladium metal additive to catalyze one of the following reactions:




Associated catalytic systems and compositions are also disclosed.

公开(公告)号：US20230067623A1

公开(公告)日：2023-03-02

申请号：US17885205

申请日：2022-08-10

申请人： WISCONSIN ALUMNI RESEARCH FOUNDATION

发明人： Shannon Stahl ,  Jason Bates

IPC分类号： B01J31/16 ,  B01J21/18 ,  B01J37/02 ,  B01J37/08 ,  C25B11/075

摘要： A method of making an M-N—C catalyst is disclosed. The method includes the steps of (a) contacting an N-doped carbon support with a basic solution that includes a metal salt, whereby the N-doped carbon support is metalated by the metal cation of the metal salt to form one or more chelated metal-nitrogen complexes (MNx species); and (b) subsequently contacting the metalated N-doped carbon support with an acid, whereby the one or more MNx species formed on the N-doped carbon support in step (a) remain intact while other species are removed. The resulting composition may be catalytically activated by heat treating the composition. The activated catalyst may be used to catalyze a wide range of chemical reactions.