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Results: 1-25 | 26-27
Results: 1-25/27
ASYMMETRIC-SYNTHESIS OF ISOCARBACYCLIN BASED ON THE OLEFINATION-ISOMERIZATION-COUPLING PROCESS WITH CHIRAL SULFOXIMINES
Authors: BUND J GAIS HJ SCHMITZ E ERDELMEIER I RAABE G
Citation: J. Bund et al., ASYMMETRIC-SYNTHESIS OF ISOCARBACYCLIN BASED ON THE OLEFINATION-ISOMERIZATION-COUPLING PROCESS WITH CHIRAL SULFOXIMINES, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, (7), 1998, pp. 1319-1335
ASYMMETRIC-SYNTHESIS OF 3-OXACARBACYCLIN AND 3-OXAISOCARBACYCLIN BY ACOMMON ENANTIOSELECTIVE DEPROTONATION BASED ROUTE
Authors: VAULONT I GAIS HJ REUTER N SCHMITZ E OSSENKAMP RKL
Citation: I. Vaulont et al., ASYMMETRIC-SYNTHESIS OF 3-OXACARBACYCLIN AND 3-OXAISOCARBACYCLIN BY ACOMMON ENANTIOSELECTIVE DEPROTONATION BASED ROUTE, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, (5), 1998, pp. 805-826
FORMAL ASYMMETRIC-SYNTHESIS OF PENTALENOLACTONE-E AND PENTALENOLACTONE-F - 1 - RETROSYNTHESIS AND PI-FACIAL DIFFERENTIATION IN PALLADIUM-CATALYZED AND DIPOLAR [3-CYCLOADDITION REACTIONS OF BICYCLIC ALKENES - EVIDENCE FOR ELECTROSTATIC CONTROL OF STEREOSELECTIVITY(2])
Authors: ROSENSTOCK B GAIS HJ HERRMANN E RAABE G BINGER P FREUND A WEDEMANN P KRUGER C LINDNER HJ
Citation: B. Rosenstock et al., FORMAL ASYMMETRIC-SYNTHESIS OF PENTALENOLACTONE-E AND PENTALENOLACTONE-F - 1 - RETROSYNTHESIS AND PI-FACIAL DIFFERENTIATION IN PALLADIUM-CATALYZED AND DIPOLAR [3-CYCLOADDITION REACTIONS OF BICYCLIC ALKENES - EVIDENCE FOR ELECTROSTATIC CONTROL OF STEREOSELECTIVITY(2]), EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, (2), 1998, pp. 257-273
FORMAL ASYMMETRIC-SYNTHESIS OF PENTALENOLACTONE-E AND PENTALENOLACTONE-F - 2 - CONSTRUCTION OF THE ANGULAR DIQUINANOID DELTA-LACTONE
Authors: HERRMANN E GAIS HJ ROSENSTOCK B RAABE G LINDNER HJ
Citation: E. Herrmann et al., FORMAL ASYMMETRIC-SYNTHESIS OF PENTALENOLACTONE-E AND PENTALENOLACTONE-F - 2 - CONSTRUCTION OF THE ANGULAR DIQUINANOID DELTA-LACTONE, EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, (2), 1998, pp. 275-289
PD-CATALYZED ASYMMETRIC-SYNTHESIS OF ALLYLIC TERT-BUTYL SULFONES AND SULFIDES - KINETIC RESOLUTION OF THE ALLYLIC SUBSTRATE BY A CHIRAL PD-COMPLEX
Authors: GAIS HJ EICHELMANN H SPALTHOFF N GERHARDS F FRANK M RAABE G
Citation: Hj. Gais et al., PD-CATALYZED ASYMMETRIC-SYNTHESIS OF ALLYLIC TERT-BUTYL SULFONES AND SULFIDES - KINETIC RESOLUTION OF THE ALLYLIC SUBSTRATE BY A CHIRAL PD-COMPLEX, Tetrahedron : asymmetry, 9(2), 1998, pp. 235-248
ASYMMETRIC-SYNTHESIS OF ALLYLIC SULFIDES VIA PALLADIUM-MEDIATED ALLYLATION OF THIOLS
Authors: FRANK M GAIS HJ
Citation: M. Frank et Hj. Gais, ASYMMETRIC-SYNTHESIS OF ALLYLIC SULFIDES VIA PALLADIUM-MEDIATED ALLYLATION OF THIOLS, Tetrahedron : asymmetry, 9(19), 1998, pp. 3353-3357
STEREOSELECTIVE SYNTHESIS OF ALLYLIC SULFOXIMINES FROM S-(CHLOROMETHYL)-N-METHYL-S-PHENYLSULFOXIMINE AND ALKENYL CUPRATES
Authors: BOSSHAMMER S GAIS HJ
Citation: S. Bosshammer et Hj. Gais, STEREOSELECTIVE SYNTHESIS OF ALLYLIC SULFOXIMINES FROM S-(CHLOROMETHYL)-N-METHYL-S-PHENYLSULFOXIMINE AND ALKENYL CUPRATES, Synlett, (1), 1998, pp. 99
SYNTHESIS AND ALKYLATION OF CYCLIC ALPHA-SULFONIMIDOYL CARBANIONS - NONTRANSFERABLE CHIRAL CARBANIONIC LIGANDS IN COPPER-MEDIATED ENANTIOSELECTIVE CONJUGATE ADDITION
Authors: BOSSHAMMER S GAIS HJ
Citation: S. Bosshammer et Hj. Gais, SYNTHESIS AND ALKYLATION OF CYCLIC ALPHA-SULFONIMIDOYL CARBANIONS - NONTRANSFERABLE CHIRAL CARBANIONIC LIGANDS IN COPPER-MEDIATED ENANTIOSELECTIVE CONJUGATE ADDITION, Synthesis, (6), 1998, pp. 919-927
AN EFFICIENT RESOLUTION OF (+ -)-S-METHYL-S-PHENYLSULFOXIMINE WITH (+)-10-CAMPHORSULFONIC ACID BY THE METHOD OF HALF-QUANTITIES/
Authors: BRANDT J GAIS HJ
Citation: J. Brandt et Hj. Gais, AN EFFICIENT RESOLUTION OF (+ -)-S-METHYL-S-PHENYLSULFOXIMINE WITH (+)-10-CAMPHORSULFONIC ACID BY THE METHOD OF HALF-QUANTITIES/, Tetrahedron : asymmetry, 8(6), 1997, pp. 909-912
ACTIVITY ENHANCEMENT OF PIG-LIVER ESTERASE IN ORGANIC-SOLVENTS BY COLYOPHILIZATION WITH METHOXYPOLYETHYLENE GLYCOL - KINETIC RESOLUTION OF ALCOHOLS
Authors: RUPPERT S GAIS HJ
Citation: S. Ruppert et Hj. Gais, ACTIVITY ENHANCEMENT OF PIG-LIVER ESTERASE IN ORGANIC-SOLVENTS BY COLYOPHILIZATION WITH METHOXYPOLYETHYLENE GLYCOL - KINETIC RESOLUTION OF ALCOHOLS, Tetrahedron : asymmetry, 8(21), 1997, pp. 3657-3664
LIPASE-CATALYZED RESOLUTION OF ALPHA-HYDROXYMETHYL SULFONES - DETERMINATION OF ABSOLUTE-CONFIGURATION BY SEMIEMPIRICAL CALCULATION OF CD SPECTRA AND VERIFICATION BY X-RAY STRUCTURE-ANALYSIS
Authors: GAIS HJ VONDERWEIDEN I FLEISCHHAUER J ESSER J RAABE G
Citation: Hj. Gais et al., LIPASE-CATALYZED RESOLUTION OF ALPHA-HYDROXYMETHYL SULFONES - DETERMINATION OF ABSOLUTE-CONFIGURATION BY SEMIEMPIRICAL CALCULATION OF CD SPECTRA AND VERIFICATION BY X-RAY STRUCTURE-ANALYSIS, Tetrahedron : asymmetry, 8(18), 1997, pp. 3111-3123
TOTAL SYNTHESIS OF (-3-OXACARBACYCLIN - 1 - RETROSYNTHESIS AND ASYMMETRIC OLEFINATION THROUGH HORNER-WADSWORTH-EMMONS, PETERSON AND MARTIN REACTIONS())
Authors: GAIS HJ SCHMIEDL G OSSENKAMP RKL
Citation: Hj. Gais et al., TOTAL SYNTHESIS OF (-3-OXACARBACYCLIN - 1 - RETROSYNTHESIS AND ASYMMETRIC OLEFINATION THROUGH HORNER-WADSWORTH-EMMONS, PETERSON AND MARTIN REACTIONS()), Liebigs Annalen, (12), 1997, pp. 2419-2431
TOTAL SYNTHESIS OF (-3-OXACARBACYCLIN - 2 - STEREOSELECTIVE DEPROTONATION AND COMPLETION OF THE SYNTHESIS())
Authors: OSSENKAMP RKL GAIS HJ
Citation: Rkl. Ossenkamp et Hj. Gais, TOTAL SYNTHESIS OF (-3-OXACARBACYCLIN - 2 - STEREOSELECTIVE DEPROTONATION AND COMPLETION OF THE SYNTHESIS()), Liebigs Annalen, (12), 1997, pp. 2433-2441
STEREOSELECTIVE HYDROXYALKYLATION OF TITANATED ALLYL SULFOXIMINES AT THE ALPHA-POSITION AS WELL AS THE GAMMA-POSITION THROUGH VARIATION OF THE TITANATION REAGENT
Authors: HAINZ R GAIS HJ RAABE G
Citation: R. Hainz et al., STEREOSELECTIVE HYDROXYALKYLATION OF TITANATED ALLYL SULFOXIMINES AT THE ALPHA-POSITION AS WELL AS THE GAMMA-POSITION THROUGH VARIATION OF THE TITANATION REAGENT, Tetrahedron : asymmetry, 7(9), 1996, pp. 2505-2508
PREPARATION OF ENANTIOMERICALLY PURE ALPHA-HYDROXYMETHYL S-TERT-BUTYLSULFONES BY CANDIDA-ANTARCTICA LIPASE-CATALYZED RESOLUTION
Authors: GAIS HJ VONDERWEIDEN I
Citation: Hj. Gais et I. Vonderweiden, PREPARATION OF ENANTIOMERICALLY PURE ALPHA-HYDROXYMETHYL S-TERT-BUTYLSULFONES BY CANDIDA-ANTARCTICA LIPASE-CATALYZED RESOLUTION, Tetrahedron : asymmetry, 7(5), 1996, pp. 1253-1256
ASYMMETRIC ACYLATION WITH POLYETHYLENE GLYCOL-MODIFIED CANDIDA-CYLINDRACEA LIPASE IN HOMOGENEOUS ORGANIC MEDIA
Authors: BREMEN U GAIS HJ
Citation: U. Bremen et Hj. Gais, ASYMMETRIC ACYLATION WITH POLYETHYLENE GLYCOL-MODIFIED CANDIDA-CYLINDRACEA LIPASE IN HOMOGENEOUS ORGANIC MEDIA, Tetrahedron : asymmetry, 7(11), 1996, pp. 3063-3066
REGIOSELECTIVE AND ENANTIOSELECTIVE SUBSTITUTION OF ACYCLIC ALLYLIC SULFOXIMINES WITH BUTYLCOPPER IN THE PRESENCE OF LITHIUM IODIDE AND BORON-TRIFLUORIDE
Authors: SCOMMODA M GAIS HJ BOSSHAMMER S RAABE G
Citation: M. Scommoda et al., REGIOSELECTIVE AND ENANTIOSELECTIVE SUBSTITUTION OF ACYCLIC ALLYLIC SULFOXIMINES WITH BUTYLCOPPER IN THE PRESENCE OF LITHIUM IODIDE AND BORON-TRIFLUORIDE, Journal of organic chemistry, 61(13), 1996, pp. 4379-4390
AB-INITIO STUDY OF THE EFFECT OF FLUORINATION UPON THE STRUCTURE AND CONFIGURATIONAL STABILITY OF ALPHA-SULFONYL CARBANIONS - THE ROLE OF NEGATIVE HYPERCONJUGATION
Authors: RAABE G GAIS HJ FLEISCHHAUER J
Citation: G. Raabe et al., AB-INITIO STUDY OF THE EFFECT OF FLUORINATION UPON THE STRUCTURE AND CONFIGURATIONAL STABILITY OF ALPHA-SULFONYL CARBANIONS - THE ROLE OF NEGATIVE HYPERCONJUGATION, Journal of the American Chemical Society, 118(19), 1996, pp. 4622-4630
PALLADIUM-CATALYZED ASYMMETRIC ALLYLIC SULFONYLATION
Authors: EICHELMANN H GAIS HJ
Citation: H. Eichelmann et Hj. Gais, PALLADIUM-CATALYZED ASYMMETRIC ALLYLIC SULFONYLATION, Tetrahedron : asymmetry, 6(3), 1995, pp. 643-646
ASYMMETRIC-SYNTHESIS OF DISUBSTITUTED C-SILYLATED HOMOALLYLIC ALCOHOLS FROM LITHIATED ALLYLIC AND VINYLIC SULFOXIMINES
Authors: GAIS HJ MULLER H DECKER J HAINZ R
Citation: Hj. Gais et al., ASYMMETRIC-SYNTHESIS OF DISUBSTITUTED C-SILYLATED HOMOALLYLIC ALCOHOLS FROM LITHIATED ALLYLIC AND VINYLIC SULFOXIMINES, Tetrahedron letters, 36(41), 1995, pp. 7433-7436
HYLSILYL-S-PHENYLSULFONIMIDOYL)-3-METHYL-2-BUTENYL LITHIUM-2(12-CROWN-4) - STRUCTURE OF A LITHIATED ALLYLIC SULFOXIMINE IN THE CRYSTAL AND COMPARISON WITH MODEL AB-INITIO CALCULATIONS
Authors: GAIS HJ LENZ D RAABE G
Citation: Hj. Gais et al., HYLSILYL-S-PHENYLSULFONIMIDOYL)-3-METHYL-2-BUTENYL LITHIUM-2(12-CROWN-4) - STRUCTURE OF A LITHIATED ALLYLIC SULFOXIMINE IN THE CRYSTAL AND COMPARISON WITH MODEL AB-INITIO CALCULATIONS, Tetrahedron letters, 36(41), 1995, pp. 7437-7440
POLYETHYLENE-GLYCOL MONOMETHYL ETHER-MODIFIED PIG-LIVER ESTERASE - PREPARATION, CHARACTERIZATION AND CATALYSIS OF ENANTIOSELECTIVE HYDROLYSIS IN WATER AND ACYLATION IN ORGANIC-SOLVENTS
Authors: HEISS L GAIS HJ
Citation: L. Heiss et Hj. Gais, POLYETHYLENE-GLYCOL MONOMETHYL ETHER-MODIFIED PIG-LIVER ESTERASE - PREPARATION, CHARACTERIZATION AND CATALYSIS OF ENANTIOSELECTIVE HYDROLYSIS IN WATER AND ACYLATION IN ORGANIC-SOLVENTS, Tetrahedron letters, 36(22), 1995, pp. 3833-3836
MODIFICATION AND IMMOBILIZATION OF PROTEINS WITH POLYETHYLENE-GLYCOL TRESYLATES AND POLYSACCHARIDE TRESYLATES - EVIDENCE SUGGESTING A REVISION OF THE COUPLING MECHANISM AND THE STRUCTURE OF THE POLYMER-POLYMERLINKAGE
Authors: GAIS HJ RUPPERT S
Citation: Hj. Gais et S. Ruppert, MODIFICATION AND IMMOBILIZATION OF PROTEINS WITH POLYETHYLENE-GLYCOL TRESYLATES AND POLYSACCHARIDE TRESYLATES - EVIDENCE SUGGESTING A REVISION OF THE COUPLING MECHANISM AND THE STRUCTURE OF THE POLYMER-POLYMERLINKAGE, Tetrahedron letters, 36(22), 1995, pp. 3837-3838
REGIOSELECTIVEN AND ENANTIOSELECTIVE SUBSTITUTION OF PRIMARY ENDOCYCLIC ALLYLIC SULFOXIMINES WITH ORGANOCOPPER AND ORGANOCUPRATE REAGENTS -THE IMPORTANCE OF IODIDE FOR THE ALLYLIC SUBSTITUTION WITH ORGANOCOPPER COMPOUNDS
Authors: GAIS HJ MULLER H BUND J SCOMMODA M BRANDT J RAABE G
Citation: Hj. Gais et al., REGIOSELECTIVEN AND ENANTIOSELECTIVE SUBSTITUTION OF PRIMARY ENDOCYCLIC ALLYLIC SULFOXIMINES WITH ORGANOCOPPER AND ORGANOCUPRATE REAGENTS -THE IMPORTANCE OF IODIDE FOR THE ALLYLIC SUBSTITUTION WITH ORGANOCOPPER COMPOUNDS, Journal of the American Chemical Society, 117(9), 1995, pp. 2453-2466
AB-INITIO CALCULATIONS ON SULFONYLMETHYL ANIONS
Authors: RAABE G GAIS HJ FLEISCHHAUER J
Citation: G. Raabe et al., AB-INITIO CALCULATIONS ON SULFONYLMETHYL ANIONS, Phosphorus, sulfur and silicon and the related elements, 95-6(1-4), 1994, pp. 345-346
Risultati: 1-25 | 26-27