公开(公告)号：US20230374254A1

公开(公告)日：2023-11-23

申请号：US18031401

申请日：2021-10-12

Applicant: BASF SE

Inventor： Thomas Schaub ,  Paul Neumann ,  Mona Al Batal ,  A. Stephen K. Hashmi ,  Wei Zhou

IPC: C08J11/28

CPC classification number: C08J11/28 ,  C08J2377/06

Abstract: Spent polyamides are returned to the value chain by hydrogenating the spent polyamide in a hydrogen atmosphere in the presence of at least one homogeneous transition metal catalyst complex, wherein the transition metal is selected from metals of groups 7, 8, 9 and 10 of the periodic table of elements according to IUPAC, to obtain a polyamine and a polyol. The hydrogenation is carried out at a reaction temperature of at least 160° C. in a non-reducible solvent having a dipole moment in the range of 1·10−30 to 10·10−30 C·m.

公开(公告)号：US20230143448A1

公开(公告)日：2023-05-11

申请号：US17918634

申请日：2021-04-13

Applicant: BASF SE

Inventor： Thomas Schaub ,  Alois Kindler ,  Steffen Mader ,  A. Stephen K. Hashmi ,  Daniel James Tindall

IPC: C07C29/145 ,  B01J31/24

CPC classification number: C07C29/145 ,  B01J31/2452 ,  C07B2200/07 ,  B01J2231/641 ,  B01J2531/821

Abstract: The invention relates to a process for L-Iditol by hydrogenating L-Sorbose. Further, the invention also relates to a use of a transition metal complex as hydrogenation catalyst for L-Sorbose. The invention relates to a process for the preparation of L-Iditol comprising at least one reaction step, in which a composition comprising L-Sorbose and hydrogen is reacted in the presence of a transition metal catalyst complex in a homogeneous solution, wherein the transition metal catalyst complex comprises at least one chiral ligand containing at least one phosphorus atom, which is capable of coordinating to the transition metal, and wherein the transition metal is selected from metals of groups 8, 9 and 10 of the periodic table of the elements according to IUPAC. The invention further relates to a use of a transition metal complex as defined above and below as hydrogenation catalyst for compositions comprising L-Iditol or mixtures thereof.

公开(公告)号：US20230073963A1

公开(公告)日：2023-03-09

申请号：US17757697

申请日：2020-12-10

Applicant: BASF SE

Inventor： Thomas SCHAUB ,  Elena Semina ,  Pavel Tuzina ,  Frank Bienewald ,  A. Stephen K. Hashmi

IPC: C07D265/10 ,  B01J31/02 ,  B01J23/46 ,  C07D207/267 ,  C07D211/76 ,  C07D225/02 ,  C07D239/88 ,  C07D241/44 ,  C07D263/22

Abstract: A process can be used to produce N-vinyl compounds by homogeneous catalysis. In the process, acetylene is reacted with a cyclic compound having at least one nitrogen as a ring member, hearing a substitutable hydrogen residue (cyclic compound C), in a liquid phase in the presence of a ruthenium complex containing at least one phosphine as a ligand (RuCat).

公开(公告)号：US20220402871A1

公开(公告)日：2022-12-22

申请号：US17819695

申请日：2022-08-15

Applicant: BASF SE

Inventor： Thomas SCHAUB ,  Martin Ernst ,  Pilar Calleja ,  A. Stephen K. Hashmi

IPC: C07D211/58 ,  C07C213/02 ,  C07C231/12 ,  C07C253/30

Abstract: A process for producing a compound of the formula (I) involves at least reacting a compound of the formula (II) with hydrogen and water in the presence of at least one homogeneous transition metal catalyst TMC 1.

公开(公告)号：US20240270690A1

公开(公告)日：2024-08-15

申请号：US18561835

申请日：2022-05-10

Applicant: BASF SE

Inventor： Thomas Schaub ,  Pavel Tuzina ,  Frank Bienewald ,  Maximilian Menche ,  Nikolai Amadeus Sitte ,  A. Stephen K. Hashmi

IPC: C07D207/267 ,  C07D263/20

CPC classification number: C07D207/267 ,  C07D263/20

Abstract: A process to produce N-vinyl compounds by homogeneous catalysis can be performed. Acetylene is reacted with a compound having at least one nitrogen bearing a substitutable hydrogen residue in a liquid phase in the presence of at least one phosphine as a catalyst to produce the compounds.

公开(公告)号：US20230094796A1

公开(公告)日：2023-03-30

申请号：US17758683

申请日：2021-01-05

Applicant: BASF SE

Inventor： Thomas SCHAUB ,  Peter Rudolf ,  Ulrike Licht ,  A. Stephen K. Hashmi ,  Saumya Dabral ,  Chloe Johnson

IPC: C07D317/40 ,  B01J31/04 ,  B01J31/18 ,  B01J31/24

Abstract: A process can be used for preparing cyclic carbonates with an exocyclic vinylidene group by reacting a propargylic alcohol with CO2 in the presence of a silver catalyst having at least one bulky ligand a lipophilic carboxylate ligand. After completion of the reaction, the catalyst is separated from the cyclic carbonate by the use of two organic solvents of different polarity and having a miscibility gap. The silver catalyst is enriched in the less polar solvent and the cyclic carbonate in the more polar solvent.

公开(公告)号：US11413610B2

公开(公告)日：2022-08-16

申请号：US16961053

申请日：2019-01-10

Applicant: BASF SE

Inventor： Thomas Schaub ,  Aviel Anaby ,  Mathias Schelwies ,  Rocco Paciello ,  Jonas Schwaben ,  A. Stephen K. Hashmi

IPC: B01J31/18 ,  C07C67/40 ,  B01J31/12

Abstract: The present invention relates to the use of a transition metal catalyst TMC1, which comprises a transition metal M selected from metals of groups 7, 8, 9 and 10 of the periodic table of elements according to IUPAC and a tetradentate ligand of formula I wherein R1 are identical or different and are each an organic radical having from 1 to 40 carbon atoms, and R2 are identical or different and are each an organic radical having from 1 to 40 carbon atoms, as catalyst in processes for formation of compounds comprising at least one carboxylic acid ester functional group —O—C(═O)— starting from at least one primary alcohol and/or hydrogenation of compounds comprising at least one carboxylic acid ester functional group —O—C(═O)—. The present invention further relates to a process for hydrogenation of a compound comprising at least one carboxylic acid ester functional group —O—C(═O)—, to a process for the formation of a compound comprising at least one carboxylic acid ester functional group —O—C(═O)— by dehydrogenase coupling of at least one primary alcohol with a second alcoholic OH-group, to a transition metal complex comprising the tetradentate ligand of formula I and to a process for preparing said transition metal complex.

公开(公告)号：US20220119332A1

公开(公告)日：2022-04-21

申请号：US17425805

申请日：2020-02-05

Applicant: BASF SE ,  Ruprecht-Karls-Universität Heidelberg

Inventor： Thomas Schaub ,  Ivana Jevtovikj ,  A. Stephen K. Hashmi ,  Kohei Sekine

IPC: C07C41/50 ,  B01J31/18 ,  B01J31/22 ,  B01J31/24

Abstract: The invention relates to a process for the preparation of acetals from carbon dioxide. The invention also relates to a mixture of phosphorus containing ligands comprising least one polydentate ligand and at least one monodentate ligand. Further, the invention also relates to the use of mixtures comprising at least one polydentate ligand and at least one monodentate ligand in transition metal complexes for the preparation of acetals.

公开(公告)号：US12172958B2

公开(公告)日：2024-12-24

申请号：US18561835

申请日：2022-05-10

Applicant: BASF SE

Inventor： Thomas Schaub ,  Pavel Tuzina ,  Frank Bienewald ,  Maximilian Menche ,  Nikolai Amadeus Sitte ,  A. Stephen K. Hashmi

IPC: C07D207/267 ,  C07D263/20

Abstract: A process to produce N-vinyl compounds by homogeneous catalysis can be performed. Acetylene is reacted with a compound having at least one nitrogen bearing a substitutable hydrogen residue in a liquid phase in the presence of at least one phosphine as a catalyst to produce the compounds.

公开(公告)号：US12172953B2

公开(公告)日：2024-12-24

申请号：US17425805

申请日：2020-02-05

Applicant: BASF SE ,  Ruprecht-Karls-Universität Heidelberg

Inventor： Thomas Schaub ,  Ivana Jevtovikj ,  A. Stephen K. Hashmi ,  Kohei Sekine

IPC: C07C41/50 ,  B01J31/18 ,  B01J31/22 ,  B01J31/24

Abstract: The invention relates to a process for the preparation of acetals from carbon dioxide. The invention also relates to a mixture of phosphorus containing ligands comprising least one polydentate ligand and at least one monodentate ligand. Further, the invention also relates to the use of mixtures comprising at least one polydentate ligand and at least one monodentate ligand in transition metal complexes for the preparation of acetals.