Patent classifications
C07C33/18
POROUS CHIRAL MATERIALS AND USES THEREOF
A porous chiral material of formula [M(L).sub.1.5(A)].sup.+X.sup. wherein M is a metal ion; L is a nitrogen-containing bidentate ligand; A is the anion of mandelic acid or a related acid; and X.sup. is an anion
POROUS CHIRAL MATERIALS AND USES THEREOF
A porous chiral material of formula [M(L).sub.1.5(A)].sup.+X.sup. wherein M is a metal ion; L is a nitrogen-containing bidentate ligand; A is the anion of mandelic acid or a related acid; and X.sup. is an anion
Chiral diamine compounds for the preparation of chiral alcohols and chiral amines
Processes for stereoselective preparation of a chiral alcohol or a chiral amine are described. The processes include reacting a first prochiral reactant selected from the group consisting of a ketone, an aldehyde, and an imine, with a second reactant that includes a Grignard reagent, in the presence of a chiral trans-diamine of formula (1) as defined herein: ##STR00001##
Chiral diamine compounds for the preparation of chiral alcohols and chiral amines
Processes for stereoselective preparation of a chiral alcohol or a chiral amine are described. The processes include reacting a first prochiral reactant selected from the group consisting of a ketone, an aldehyde, and an imine, with a second reactant that includes a Grignard reagent, in the presence of a chiral trans-diamine of formula (1) as defined herein: ##STR00001##
Processes for the synthesis of chiral 1-alkanols
The invention relates to highly enantioselective processes for the synthesis of chiral 1-alkanols via Zr-catalyzed asymmetric carboalumination of alkenes.
Processes for the synthesis of chiral 1-alkanols
The invention relates to highly enantioselective processes for the synthesis of chiral 1-alkanols via Zr-catalyzed asymmetric carboalumination of alkenes.
Compositions and methods for reduction of ketones, aldehydes and iminiums, and products produced thereby
A method of producing an alcohol, comprises reducing an aldehyde or a ketone with a hydridosilatrane. The reducing is carried out with an activator.
Compositions and methods for reduction of ketones, aldehydes and iminiums, and products produced thereby
A method of producing an alcohol, comprises reducing an aldehyde or a ketone with a hydridosilatrane. The reducing is carried out with an activator.
Materials comprising carbon-embedded iron nanoparticles, processes for their manufacture, and use as heterogeneous catalysts
The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with iron nanoparticles dispersed therein, wherein d.sub.p, the average diameter of iron nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between iron nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and , the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein d.sub.p, D and conform to the following relation: 4.5 d.sub.p/>D0.25 d.sub.p/. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.
Materials comprising carbon-embedded iron nanoparticles, processes for their manufacture, and use as heterogeneous catalysts
The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with iron nanoparticles dispersed therein, wherein d.sub.p, the average diameter of iron nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between iron nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and , the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein d.sub.p, D and conform to the following relation: 4.5 d.sub.p/>D0.25 d.sub.p/. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.