B01J2231/4205

Palladium (II)-catalyzed γC(SP.SUP.3.)-H alkynylation of amines

The present invention relates to a Palladium (II)-catalyzed C(sp.sup.3)-H alkynylation of amines using picolinamide as directing group. The developed alkynylation strategy is simple, efficient, and tolerant of various ring size including five to eight member cyclic, quaternary amines, and N-heterocyclic motifs.

SUPPORTED METAL CATALYST
20200290018 · 2020-09-17 · ·

A long-life catalyst which can be easily and inexpensively manufactured and has high activity and suppressed leakage of metal. A catalyst according to some embodiments includes: a substrate; and a first metal atom as a catalytic center. The substrate contains a non-metallic atom and a second metal atom, and the non-metallic atom is any one selected from the group consisting of a group 15 element, a group 16 element and a group 17 element.

METAL HYDROXIDE BASED IONIC LIQUID COMPOSITION

The present disclosure relates to an ionic liquid composition and a process for its preparation. The process of the present disclosure is simple, single pot and efficient process for preparing the ionic liquid composition which is effective in a Friedel Craft reaction like, alkylation reaction, trans-alkylation, and acylation.

The present disclosure envisages an ionic liquid composition comprising at least one metal hydroxide; at least one metal halide; and at least one solvent. Also envisaged is a process for preparing an ionic liquid composition. The process comprises mixing in a reaction vessel, at least one metal hydroxide and at least one metal halide in the presence of at least one solvent under a nitrogen atmosphere and continuous stirring followed by cooling under continuous stirring to obtain the ionic liquid composition.

Chiral phase-transfer catalyst and method for preparing alpha-amino acid by using the same

The present invention relates to a novel chiral phase-transfer catalyst, and a method for preparing an alpha-amino acid by using the same. According to the present invention, an alpha-amino acid of high optical purity could be synthesized in a high yield under an easy industrially applicable reaction condition by using a novel cinchona alkaloid compound as a chiral phase-transfer catalyst, and thus the present invention can be used as a key technique of the asymmetric alpha-amino acid synthesis and preparation field.

PALLADIUM ACYCLIC DIAMINOCARBENE COMPLEXES AS PRECATALYSTS FOR HIYAMA COUPLING AND THE TANDEM ONE-POT FLUORIDE FREE HIYAMA COUPLING/CYCLIZATION FOR THE SYNTHESIS OF BIOLOGICALLY RELEVANT

The present invention provides Acyclic diaminocarbene complex of formula (I):

##STR00001##

Wherein,
M is palladium;
X is monoanionic ligand selected from Cl, Br or I;
Where R1 is different from R2;
R1 is selected from the group consisting of alkyl or aryl, each of which have 4 to 20 carbon atoms, and may optionally contain one or more heteroatoms;
R2 is selected from the group consisting of alkyl, or aryl each of which have 4 to 20 carbon atoms, and may optionally contain one or more heteroatoms. The said palladium diamino carbine complex of the present invention are particularly useful as catalyst from Hiyama cross-coupling reaction.

SYNTHESIS OF CANNABIGEROL
20200115306 · 2020-04-16 ·

Multiple methods of synthesizing cannabigerol are presented. Combining olivetol with geraniol derivatives are provided. Cross-coupling methods of combing functionalized resorcinols are provided. Useful intermediates are formed during such cross-coupling steps.

Complexes

The present invention provides a complex of formula (1), ##STR00001##
wherein, M is palladium or nickel, R.sub.1 and R.sub.2 are independently organic groups having 1-20 carbon atoms, or R.sub.1 and R.sub.2 are linked to form a ring structure with the phosphorus atom, R.sub.3 is selected from the group consisting of substituted and unsubstituted aryl, substituted and unsubstituted heteroaryl, and substituted and unsubstituted metallocenyl, R.sub.4 is an organic group having 1-20 carbon atoms, n is 0, 1, 2, 3, 4 or 5, and X is an anionic ligand. The invention also provides a process for the preparation of the complex, and its use in carbon-carbon or carbon-nitrogen coupling reactions.

CARBON NANOBELT AND PRODUCTION METHOD THEREFOR

A carbon nanobelt represented by formula (1) was synthesized by chemical synthesis: text missing or illegible when filed

wherein each Ar is identical or different and represents an aromatic hydrocarbon ring; each R.sup.1 is identical or different and represents hydrogen, alkyl, aryl, or alkoxy; and n represents an integer of 0 or more.

IRON SALT CATALYST REGENERATION
20240132427 · 2024-04-25 ·

Chemical processes are disclosed that act to both regenerate and create new catalyst for iron salt catalyzed Kharasch coupling reactions during the process of creating halogenated hydrocarbons. Such processes include loading a reactor with a quantity of Fe(0) metal such as iron wire, supplying CCl.sub.4 to the reactor, supplying a phosphate compound to the reactor, supplying an alkene to the reactor, and supplying a carbonyl of Fe(0) to the reactor.

ORGANO-PHOSPHATE MODIFIED METAL ORGANIC FRAMEWORKS AND APPLICATIONS
20240139722 · 2024-05-02 ·

Disclosed is a method to modify metal-organic frameworks (MOFs) by irreversible adsorption of nucleotides including, but not limited to, adenosine triphosphate (ATP), guanosine triphosphate (GTP), deoxyadenosine triphosphate (dATP), adenosine diphosphate (ADP), and adenosine monophosphate (AMP), the modified MOFs, and the use of the modified MOFs as adsorbents and catalysts.