Ruthenium-binap asymmetric hydrogenation catalyst

A ruthenium-phosphine complex represented by the formula:< P>< P>[RuXY(BINAP].sub.nwherein n is an integer of from 1 to about 10; and X and Y independently represent nonchelating anionic ligands.

ASC Chan，SA Laneman - US

Chiral solid catalyst, its preparation and its use for the production of substantially enantiomerically pure products

The invention relates to a chiral solid catalyst containing a BEA topology zeolite and a metal-binap complex and to a process for the production of substantially enantiomerically pure products from prochiral starting material with the ca...

WV Brussel，M Renard，D Tas，... - EP

Ruthenium-Phospin Komplex

The invention relates to a chiral solid catalyst containing a BEA topology zeolite and a metal-binap complex and to a process for the production of substantially enantiomerically pure products from prochiral starting material with the ca...

T Ikariya - EP

Process for making 5-lipoxygenase inhibitors having varied heterocyclic ring systems

A process is described for preparing a compound of Formula (1.3.0): comprising: establishing a reaction mixture consisting of in an aprotic solvent; in the presence of NaOH or KOH; optionally in the presence of a phase tr...

T Norris，ME Hnatow

Process for making 5-lipoxygenase inhibitors having varied heterocyclic ring systems

A process is described for preparing a compound of Formula (1.3.0): comprising: establishing a reaction mixture consisting of in an aprotic solvent; in the presence of NaOH or KOH; optionally in the presence of a phase transfer catalyst,...

N Timothy，HM Elizabeth

Ruthenium-optically active phosphine complex, process for the preparation thereof and process for the preparation of optically active 4-methyl-2-oxetanone using same

The present invention provides a catalyst which exhibits a high catalytic activity and allows asymmetric reaction in a high asymmetric yield to obtain a reaction product having a high optical purity. The present invention also provides a...

Y Okeda，Y Hori，T Hagiwara

Process for making 5-lipoxygenase inhibitors having varied heterocyclic ring systems

process is described for preparing a compound of Formula (1.3.0)

T Norris，Megan E. Hnatow，John F. Lambert - US

Exhibits high catalytic activity and allows asymmetric reaction in a high asymmetric yield to obtain a reaction product having a high optical purity

wherein R 1 -BINAP represents an optically active tertiary phosphine represented by the following general formula (2): ##STR1## wherein R 1 represents an...

Y Okeda，Y Hori，T Hagiwara

Process for making 5-lipoxygenase inhibitors having varied heterocyclic ring systems

A novel process intermediate, tetrahydro-4-[3-(4-fluorophenyl)thio]phenyl-2H-pyran-4-carboxamide, of the formula: is described, as well as its use in a process of preparing 5-lipoxygenase inhibitors of the formula: which comprises esta...

N Timothy，P Inc.，LJ Francis，...

Catalytic hydrogenation of ene-carbamates

wherein: X is CH 2 , oxygen or sulphur; R 1 , R 2 and R 3 are the same or different and signify hydrogens, halogens, alkyl, alkyloxy, hydroxy, nitro, alkylcarbonylamino, alkylamino or dialkylamino group; and R 4 is alkyl or aryl, wherein...

DA Learmonth，A Zanotti-Gerosa，GA Grasa，... - US