Inventor

KUMOBAYASHI HIDENORI

JP69 patents

Patents

50 patents

US5206399AApr 27, 1993

2,2'-bis(diphenylphosphino)-5,5',6,6',7,7',8,8'-octahydro-1,1'-binaphthyl and transition metal complex containing the same as ligand

TAKASAGO PERFUMERY CO LTD28 citations93

US5847222ADec 8, 1998

Optically active diphosphine compound, method for making the compound, transition metal complex having the compound as ligand and method for making optically active substance by use of the complex

TAKASAGO PERFUMERY CO LTD22 citations92

US5530150AJun 25, 1996

Phosphine compound, complex containing the phosphine compound as ligand, process for producing optically active aldehyde using the phosphine compound or the complex, and 4-[(R)-1'-formylethyl]azetidin-2-one derivatives

TAKASAGO PERFUMERY CO LTD23 citations92

US5430171AJul 4, 1995

2-phenyl-2-(2'-piperidinylidene)acetate derivative, process for manufacturing the same, and process for manufacturing optically active 2-phenyl-2-(2'-piperidinyl)acetate derivative by asymmetrically hydrogenating the same

TAKASAGO PERFUMERY CO LTD23 citations91

US5274146ADec 28, 1993

Water-soluble alkali metal sulfonate-substituted binaphthylphosphine transition metal complex and enantioselective hydrogenation method using it

TAKASAGO PERFUMERY CO LTD24 citations90

US5599954AFeb 4, 1997

N-substituted-7-amino-5-hydroxy-3-oxoheptanoic acid derivatives and method for producing the same

TAKASAGO PERFUMERY CO LTD29 citations89

US5312939AMay 17, 1994

2,2'-bis (dicyclopentylphosphino)-1,1'-binaphthyl and transition metal complex using the same as ligand

TAKASAGO PERFUMERY CO LTD18 citations82

US4916252AApr 10, 1990

Process for preparing optically active alcohol

TAKASAGO PERFUMERY CO LTD21 citations82

US4851537AJul 25, 1989

Process for preparing N-acyltetrahydroisoquinoline

TAKASAGO PERFUMERY CO LTD22 citations82

US4605750AAug 12, 1986

Rhodium-phosphine complex

TAKASAGO PERFUMERY CO LTD24 citations82

US4994602AFeb 19, 1991

Process for preparing optically active 6-t-butyoxy-3,5-dihydroxyhexanoic esters

TAKASAGO PERFUMERY CO LTD21 citations81

US4739085AApr 19, 1988

Ruthenium-phosphine complex

TAKASAGO PERFUMERY CO LTD22 citations80

US5066815ANov 19, 1991

Process for preparing optically active alcohol

TAKASAGO PERFUMERY CO LTD20 citations79

US5306834AApr 26, 1994

Process for preparing optically active 4-methyl-2-oxetanone

TAKASAGO PERFUMERY CO LTD8 citations74

US4933482AJun 12, 1990

Process for preparing optically active alcohol

TAKASAGO PERFUMERY CO LTD18 citations74

US5808162ASep 15, 1998

Chiral unsymmetric diphosphine compound and transition metal complex containing the same as ligand

TAKASAGO PERFUMERY CO LTD12 citations73

US5563295AOct 8, 1996

Process for producing optically active carboxylic acid

TAKASAGO PERFUMERY CO LTD8 citations73

US5502221AMar 26, 1996

Process for producing cyclohexylbutyric acid derivative

TAKASAGO PERFUMERY CO LTD6 citations73

US5420306AMay 30, 1995

Process for producing optically active γ-butyrolactone derivatives

TAKASAGO PERFUMERY CO LTD12 citations73

US5159093AOct 27, 1992

Iridium-optically active phosphine complex and process for producing optically active alcohols using the same

TAKASAGO PERFUMERY CO LTD12 citations73

US5144042ASep 1, 1992

Process for preparing optically active 3-hydroxypyrrolidine derivatives

TAKASAGO PERFUMERY CO LTD10 citations73

US4962242AOct 9, 1990

Process for producing optically active alcohols

TAKASAGO PERFUMERY CO LTD17 citations73

US4906773AMar 6, 1990

Process for preparing optically active threonine

TAKASAGO PERFUMERY CO LTD12 citations73

US4766225AAug 23, 1988

Ruthenium-phosphine complex

TAKASAGO PERFUMERY CO LTD15 citations73

US4766227AAug 23, 1988

Ruthenium-phosphine complex

TAKASAGO PERFUMERY CO LTD14 citations73

US4764629AAug 16, 1988

Ruthenium-phosphine complex

TAKASAGO PERFUMERY CO LTD7 citations73

US5801271ASep 1, 1998

7-(n-substituted amino)-2-phenylheptanoic acid derivative and process for manufacturing the same

TAKASAGO PERFUMERY CO LTD7 citations72

US5412109AMay 2, 1995

Process for preparing optically active 4-methyl-2-oxetanone

TAKASAGO PERFUMERY CO LTD10 citations72

US5223632AJun 29, 1993

2,2'-bis(di-(3,5-dialkylphenyl)phosphino)-1,1'-binaphthyl and transition metal complex containing the samd ligand

TAKASAGO PERFUMERY CO LTD15 citations72

US5756760AMay 26, 1998

1-substituted-2-diphenylphosphinonaphthalene and transition metal complex comprising the same as a ligand

TAKASAGO PERFUMERY CO LTD10 citations71

US5324861AJun 28, 1994

Water-soluble alkali metal sulfonate-substituted binaphthylphosphine transition metal complex and enantioselective hydrogenation method using it

TAKASAGO PERFUMERY CO LTD10 citations71

US5231202AJul 27, 1993

Optically active tertiary phosphine compound and transition metal complex using the same as ligand

TAKASAGO PERFUMERY CO LTD18 citations71

US4954644ASep 4, 1990

Ruthenium-phosphine complex

TAKASAGO PERFUMERY CO LTD18 citations69

US4695631ASep 22, 1987

Process for the preparation of enamines or imines

TAKASAGO PERFUMERY CO LTD17 citations68

US4705895ANov 10, 1987

5,5'-diamino or 5,5'-diacetamido-2,2'-bis(diphenylphosphino)-1,1'-binaphthyls

TAKASAGO PERFUMERY CO LTD9 citations64

US5629420AMay 13, 1997

Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives

TAKASAGO PERFUMERY CO LTD1 citations63

US5606052AFeb 25, 1997

Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives

TAKASAGO PERFUMERY CO LTD1 citations63

US5288862AFeb 22, 1994

Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives

TAKASAGO PERFUMERY CO LTD1 citations63

US5210315AMay 11, 1993

Process for producing α-hydroxyketones

TAKASAGO PERFUMERY CO LTD6 citations63

US5081239AJan 14, 1992

Ruthenium catalyzed process for preparing 4-acetoxyazetidinones

TAKASAGO PERFUMERY CO LTD5 citations63

US4965398AOct 23, 1990

Process for producing optically active alpha-hydroxycarboxylates

TAKASAGO PERFUMERY CO LTD3 citations63

US4144257AMar 13, 1979

Process for preparing derivatives of conjugated diene dimers

TAKASAGO PERFUMERY CO LTD4 citations63

US5824822AOct 20, 1998

Phospphine-phosinite compound and process for preparing 4- (R)-1'-formylethyl!-azetidin-2-one derivatives using the same

TAKASAGO PERFUMERY CO LTD5 citations62

Showing the top 50 of 69 patents by PatentIndex Score.

KUMOBAYASHI HIDENORI

Patents

2,2&#39;-bis(diphenylphosphino)-5,5&#39;,6,6&#39;,7,7&#39;,8,8&#39;-octahydro-1,1&#39;-binaphthyl and transition metal complex containing the same as ligand

Optically active diphosphine compound, method for making the compound, transition metal complex having the compound as ligand and method for making optically active substance by use of the complex

Phosphine compound, complex containing the phosphine compound as ligand, process for producing optically active aldehyde using the phosphine compound or the complex, and 4-[(R)-1&#39;-formylethyl]azetidin-2-one derivatives

T-butyl (R)-(-)-4-cyano-3-hydroxybutyrate and process for preparing the same

2,2&#39;-bis(di-(m-tolyl)phosphino)-1,1&#39;-binaphthyl

Ruthenium-phoshine complex

Process for producing optically active carboxylic acid

Process for preparing carnitine

Ruthenium-phosphine complex

Rhodium-phosphine complex

2-phenyl-2-(2&#39;-piperidinylidene)acetate derivative, process for manufacturing the same, and process for manufacturing optically active 2-phenyl-2-(2&#39;-piperidinyl)acetate derivative by asymmetrically hydrogenating the same

Water-soluble alkali metal sulfonate-substituted binaphthylphosphine transition metal complex and enantioselective hydrogenation method using it

N-substituted-7-amino-5-hydroxy-3-oxoheptanoic acid derivatives and method for producing the same

2,2&#39;-bis (dicyclopentylphosphino)-1,1&#39;-binaphthyl and transition metal complex using the same as ligand

Process for preparing optically active alcohol

Process for preparing N-acyltetrahydroisoquinoline

Rhodium-phosphine complex

Process for preparing optically active 6-t-butyoxy-3,5-dihydroxyhexanoic esters

Ruthenium-phosphine complex

Process for preparing optically active alcohol

Process for preparing optically active 4-methyl-2-oxetanone

Process for preparing optically active alcohol

Chiral unsymmetric diphosphine compound and transition metal complex containing the same as ligand

Process for producing optically active carboxylic acid

Process for producing cyclohexylbutyric acid derivative

Process for producing optically active γ-butyrolactone derivatives

Iridium-optically active phosphine complex and process for producing optically active alcohols using the same

Process for preparing optically active 3-hydroxypyrrolidine derivatives

Process for producing optically active alcohols

Process for preparing optically active threonine

Ruthenium-phosphine complex

Ruthenium-phosphine complex

Ruthenium-phosphine complex

7-(n-substituted amino)-2-phenylheptanoic acid derivative and process for manufacturing the same

Process for preparing optically active 4-methyl-2-oxetanone

2,2&#39;-bis(di-(3,5-dialkylphenyl)phosphino)-1,1&#39;-binaphthyl and transition metal complex containing the samd ligand

1-substituted-2-diphenylphosphinonaphthalene and transition metal complex comprising the same as a ligand

Water-soluble alkali metal sulfonate-substituted binaphthylphosphine transition metal complex and enantioselective hydrogenation method using it

Optically active tertiary phosphine compound and transition metal complex using the same as ligand

Ruthenium-phosphine complex

Process for the preparation of enamines or imines

5,5&#39;-diamino or 5,5&#39;-diacetamido-2,2&#39;-bis(diphenylphosphino)-1,1&#39;-binaphthyls

Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives

Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives

Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives

Process for producing α-hydroxyketones

Ruthenium catalyzed process for preparing 4-acetoxyazetidinones

Process for producing optically active alpha-hydroxycarboxylates

Process for preparing derivatives of conjugated diene dimers

Phospphine-phosinite compound and process for preparing 4- (R)-1&#39;-formylethyl!-azetidin-2-one derivatives using the same

2,2'-bis(diphenylphosphino)-5,5',6,6',7,7',8,8'-octahydro-1,1'-binaphthyl and transition metal complex containing the same as ligand

Phosphine compound, complex containing the phosphine compound as ligand, process for producing optically active aldehyde using the phosphine compound or the complex, and 4-[(R)-1'-formylethyl]azetidin-2-one derivatives

2,2'-bis(di-(m-tolyl)phosphino)-1,1'-binaphthyl

2-phenyl-2-(2'-piperidinylidene)acetate derivative, process for manufacturing the same, and process for manufacturing optically active 2-phenyl-2-(2'-piperidinyl)acetate derivative by asymmetrically hydrogenating the same

2,2'-bis (dicyclopentylphosphino)-1,1'-binaphthyl and transition metal complex using the same as ligand

2,2'-bis(di-(3,5-dialkylphenyl)phosphino)-1,1'-binaphthyl and transition metal complex containing the samd ligand

5,5'-diamino or 5,5'-diacetamido-2,2'-bis(diphenylphosphino)-1,1'-binaphthyls

Phospphine-phosinite compound and process for preparing 4- (R)-1'-formylethyl!-azetidin-2-one derivatives using the same