B01J31/181

METAL CATALYST, METHOD OF C-N COUPLING USING THE SAME AND APPLICATIONS OF THE SAME
20190039057 · 2019-02-07 ·

The present disclosure relates to a metal catalyst for CH bond activation and/or CN coupling reaction, and a method using the same and application thereof. Specifically, a metal catalyst represented by the following formula:

##STR00001##

wherein
Q is a 5 or 6 membered aromatic ring;
W, X, and Y are the same or different, and are independently N, S, P, or O;
M is Ni, Pd, Fe, Co, Cr, Mn, Cu, Pt, Ir, or Ru;
Z is halide (F, Cl, Br, or I), acetate, water, or hydroxyl;
R.sub.1 and R.sub.2 are the same or different, and are independently alkyl, aryl, alkylaryl or cycloalkyl.

Dehydrogenation of neat formic acid

A formic acid decomposition catalyst system includes organometallic complexes having formula 1: ##STR00001## wherein: M is a transition metal; E is P, N, or C (as in imidazolium carbene); R.sub.1, R.sub.2 are independently C.sub.1-6 alkyl groups; o is 1, 2, 3, or 4; R.sub.3 are independently hydrogen, C.sub.1-6 alkyl groups, OR.sub.14, NO.sub.2, halogen; R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12, R.sub.13, R.sub.15, R.sub.16 are independently hydrogen or C.sub.1-6 alkyl groups; R.sub.14 is a C.sub.1-6 alkyl group; and X.sup. is a negatively charge counter ion.

MARKOVNIKOV-SELECTIVE PALLADIUM CATALYST FOR CARBONYLATION OF ALKYNES WITH HETEROARENES

Markovnikov-selective palladium catalyst for carbonylation of alkynes with heteroarenes.

CATALYTIC COMPOSITION COMPRISING NICKEL, A PHOSPHINE-TYPE LIGAND AND A LEWIS BASE, AND USE THEREOF IN AN OLEFIN OLIGOMERISATION METHOD

The invention concerns a catalytic composition comprising: at least one nickel precursor with an oxidation number of (+II), at least one phosphine ligand with formula PR.sup.1R.sup.2R.sup.3 in which the groups R.sup.1, R.sup.2 and R.sup.3, which may be identical or different and which may or may not be bonded together, and at least one Lewis base, said composition having a molar ratio of the phosphine ligand to the nickel precursor of less than or equal to 5 and a molar ratio of the Lewis base and phosphine ligand together to the nickel precursor of greater than or equal to 5.

Methods for producing borylated arenes

Methods for the borylation of aromatic compounds using cobalt catalysts are provided.

Group 8 transition metal catalysts and method for making same and process for use of same in metathesis reaction

Metal catalyst compounds are disclosed. The catalyst compound are represented by the formula (I-II and VII): wherein M is a Group 8 metal; X is an anionic ligand; L is a neutral two electron donor ligand; K 2 (A-E) is a ditopic or multitopic ligand. Also disclosed is an easy applicable catalyst synthesis and the application in different olefin metathesis processes, e.g. Reaction Injection Molding (RIM), rotational molding, vacuum infusion, vacuum forming, process for conversion of fatty acids and fatty acid esters or mixtures thereof, in -olefins, dicarboxylic acids or dicarboxylic esters, etc.

DECARBOXYLATIVE CONJUGATE ADDITIONS AND APPLICATIONS THEREOF
20240287129 · 2024-08-29 ·

Synthetic methods are described herein operable to efficiently produce a wide variety of molecular species through conjugate additions via decarboxylative mechanisms. For example, methods of functionalization of peptide residues are described, including selective functionalization of peptide C-terminal residues. In one aspect, a method of peptide functionalization comprises providing a reaction mixture including a Michael acceptor and a peptide and coupling the Michael acceptor with the peptide via a mechanism including decarboxylation of a peptide reside.

FRUSTRATED LEWIS PAIR-IMPREGNATED POROUS MATERIALS AND USES THEREOF
20240269659 · 2024-08-15 ·

Described herein are compositions composed of frustrated Lewis pairs impregnated in porous materials such as, for example, metal-organic frameworks, and their uses thereof. These compositions may allow new applications of frustrated Lewis pairs in catalysis by sequestering and protecting the frustrated Lewis pair within the nanospace of the porous material. Also provided are methods of hydrogenating an organic compound having at least one unsaturated functional group comprising using the compositions described herein.

COBALT CATALYSTS CONTAINING "SMART" OR "TASK SPECIFIC" ANIONS

In an embodiment, the present disclosure pertains to a composition having a cation and an anion. In some embodiments, a base is incorporated into the anion, and the cation and the anion form a bifunctional catalyst. In some embodiments, the cation is a chiral cobalt(III) species, and a nitrogenous Brpnsted base is incorporated into counter anions of the chiral cobalt(III) species cation. In some embodiments, the bifunctional catalyst is a tricationic cobalt(III) hydrogen bond donor catalyst, and a nitrogenous Brpnsted base is incorporated into counter anions of the tricationic cobalt(III) hydrogen bond donor catalyst. In another aspect, the present disclosure pertains to a bifunctional catalyst having a smart anion with a cationic metal species. In some embodiments, the smart anion performs a specific role in a chemical reaction without the inclusion of additional external components to accomplish a same specific role in the chemical reaction.

Quinolines and process for the preparation thereof

The present invention discloses novel N-Heterocyclic compounds of formula A, [Formula A] And a ligand-enabled palladium-catalyzed process for preparation of novel N-Heterocyclic compounds of Formula A via CH alkynylation of N-heterocycles with alkynyl halides. ##STR00001##