Kanata Chemical Technologies Inc.

Kare Chemical Technologies Inc.

Wenli Jia

Kamaluddin Abdur-Rashid

Rongwei Guo

Xuanhua Chen

Chi-Wing Tsang

Dino Amoroso

Todd Graham

Shuiming Lu

Kareem Abdur-Rashid

Christine Sui-Seng

The present disclosure relates to a new catalytic process for the production of methanol from carbon dioxide, comprising: (1) the conversion of carbon dioxide and hydrogen to formic acid or formate salts; (2) converting the formic acid or formate salts to diformate esters of diols; (3) hydrogenating the diformate esters to methanol and diols. The diols produced from the hydrogenation reaction can be recovered and re-used to prepare the diformate esters.

Catalytic conversion of carbon dioxide to methanol using diformate esters as intermediates

The present disclosure relates to processes and methods of generating hydrogen via the dehydrocoupling of amine boranes using ligand-stabilized homogenous metal catalysts. The amine-borane is shown by the formula (I), RRN&#x2014;BHRR. A process is also shown for the preparation of a linear, branched or cyclic polymer which comprises a repeating unit of the formula (II), &#x2014;[RRN&#x2014;BRR]-n, by reacting HRRN&#x2014;BHRRin the presence of at least one ligand-stabilized metal catalyst.

Method for the production of hydrogen from the dehydrocoupling of amine boranes

The present disclosure relates to biaryl diphosphine ligands of the formula (B), processes for the production of the ligands and the use of the ligands in metal catalysts for asymmetric synthesis. The disclosure also relates to intermediates used for the production of the biaryl diphosphine ligand. (Formula (B)) 

Biaryl diphosphine ligands, intermediates of the same and their use in asymmetric catalysis

The present application is directed to i) a method for synthesizing aminophosphine (P,N) and phosphine-aminophosphine (P,N,P) ligands, ii) the use of such ligands in the preparation of metal complexes as hydrogenation catalysts, and iii) aminophosphine (P,N) and phosphine-aminophosphine (P,N,P) ligands of various structures. In particular, the methods in i) involve reacting a protected tertiary amine of formula (I) with a metal phosphide of the formula Y&#x2014;PR8R9 to afford an aminophosphine of formula (II), which can then be optionally further reacted with a phosphine of the formula (III) to afford the phosphine-aminophosphine of formula (IV).

Method for the preparation of aminophosphine ligands and their use in metal catalysts

The present disclosure relates to processes and methods of generating hydrogen via the hydrolysis or solvolyis of a compound of the formula (I), RRHNBHRR, using ligand-stabilized homogeneous metal catalysts.

Method for the production of hydrogen from ammonia borane

The present disclosure relates to a method for the stereoselective production of cis-4-tertbutylcyclohexanol comprising contacting 4-tert-butylcyclohexanone with hydrogen gas, a catalyst comprising a ruthenium-aminophosphine complex and a base, wherein the complex is of the formula RuX(PNH)(P)(I), wherein X is anionic ligand, (PNH) represents an aminophosphine ligand of the formula (II) RRP-L-NHand (P) represents a diphosphine ligand of the formula (III) RRP-L-PRR.

Method for the preparation of cis-4-tert-butylcyclohexanol

A process for the reduction of compounds comprising one or more carbon-oxygen (C&#x2550;0) double bonds, to provide the corresponding alcohol, comprising contacting the compound with hydrogen gas at a pressure greater than 3 atm and a catalyst comprising an iridium aminodiphosphine complex.

Iridium catalysts for catalytic hydrogenation

The present disclosure relates to a process for the hydrogenation of compounds comprising one or more carbon-oxygen (C&#x2550;O) double bonds, to provide the corresponding alcohol, comprising contacting the compound with hydrogen gas at and a catalyst comprising a ruthenium-aryl-aminophosphine complex.

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Mississauga, Canada

Wenli Jia