Patent classifications
C07B37/04
Process for preparing substituted biphenyls
The present invention relates to a process for preparing substituted biphenyls via Suzuki coupling using specific phosphorus ligands and a solvent mixture containing water, a non-polar organic solvent and a polar aprotic co-solvent.
Process for preparing substituted biphenyls
The present invention relates to a process for preparing substituted biphenyls via Suzuki coupling using specific phosphorus ligands and a solvent mixture containing water, a non-polar organic solvent and a polar aprotic co-solvent.
YLIDE-FUNCTIONALISED PHOSPHANES FOR USE IN METAL COMPLEXES AND HOMOGENEOUS CATALYSIS
The invention relates to ylide-functionalized phosphane ligands, the production of same and use in transition metal compounds, as well as the use of same as catalysts in organic reactions.
Method for Preparation of Alkylated or Fluoro, Chloro and Fluorochloro Alkylated Compounds by Heterogeneous Cobalt Catalysis
The invention discloses a method for preparation of alkylated, fluoro alkylated, chloro alkylated and fluorochloro alkylated compounds by a heterogeneous Co-catalysed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl halides, fluoro alkyl halides, chloro alkyl halides or fluorochloro alkyl halides respectively.
ORGANIC REACTIONS CARRIED OUT IN AQUEOUS SOLUTION IN THE PRESENCE OF A HYDROXYALKYL(ALKYL)CELLULOSE OR AN ALKYLCELLULOSE
The present invention relates to a method of carrying out an organic reaction in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose.
ORGANIC REACTIONS CARRIED OUT IN AQUEOUS SOLUTION IN THE PRESENCE OF A HYDROXYALKYL(ALKYL)CELLULOSE OR AN ALKYLCELLULOSE
The present invention relates to a method of carrying out an organic reaction in aqueous solution in the presence of a hydroxyalkyl(alkyl)cellulose or an alkylcellulose.
Complexes
The present invention provides a palladium(II) complex of formula (1) or a palladium(II) complex of formula (2).
##STR00001##
R.sub.1, R.sub.2, R.sub.3, 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.18, R.sub.19, R.sub.20, R.sub.21, R.sub.22, R.sub.23 and R.sub.24, m, E and X are described in the specification. The invention also provides a process for the preparation of the complexes, and their use in carbon-carbon and carbon-heteroatom coupling reactions.
Complexes
The present invention provides a palladium(II) complex of formula (1) or a palladium(II) complex of formula (2).
##STR00001##
R.sub.1, R.sub.2, R.sub.3, 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.18, R.sub.19, R.sub.20, R.sub.21, R.sub.22, R.sub.23 and R.sub.24, m, E and X are described in the specification. The invention also provides a process for the preparation of the complexes, and their use in carbon-carbon and carbon-heteroatom coupling reactions.
METHODS FOR ENANTIOSELECTIVE ALLYLIC ALKYLATION OF ESTERS, LACTONES, AND LACTAMS WITH UNACTIVATED ALLYLIC ALCOHOLS
The present disclosure provides methods for enantioselective synthesis of cyclic and acyclic -quaternary carboxylic acid derivatives via nickel-catalyzed allylic alkylation.
PLATINUM GROUP METAL ION-SUPPORTED CATALYST AND METHOD FOR FORMING CARBON-CARBON BOND
A platinum group metal ion-supported catalyst in which platinum group metal ions or platinum group metal complex ions are supported on a non-particulate organic porous ion exchanger, wherein the non-particulate organic porous ion exchanger is formed of a continuous framework phase and a continuous pore phase; has a thickness of a continuous framework of 1 to 100 m, an average diameter of continuous pores of 1 to 1000 m, and a total pore volume of 0.5 to 50 ml/g; has an ion exchange capacity per weight in a dry state of 1 to 9 mg equivalent/g; and has ion exchange groups wherein the ion exchange groups are uniformly distributed in the organic porous ion exchanger.