Johann Lex - Publications, H-index & Citations

Johann Lex

University of Cologne

53H指数

467论文数

9.3K被引数

收录论文 49

发表时间

1,2,5,10,11,14-hexaoxadispiro[5.2.5.2]hexadecanes: Novel spirofused bis-trioxane peroxides

MOLECULES

IF4.6

2008-08-19

OAAI

Griesbeck, Axel G.; Hoeinck, Lars-Oliver; Lex, Johann; Neudoerfl, Joerg; Blunk, Dirk; El-Idreesy, Tamer T.

Modular synthesis of chiral phosphine-phosphite-ligands from phenolic precursors:: A new approach to bidentate chelate ligands exploiting a P-O to P-C migration rearrangement

ADVANCED SYNTHESIS & CATALYSIS

IF4

2008-05-30

PREAI

Velder, Janna; Robert, Tobias; Weidner, Ingo; Neudoerfl, Joerg-Martin; Lex, Johann; Schmalz, Hans-Guenther

A practical and versatile access to dihydrosalen (Salalen) ligands:: Highly enantioselective titanium in situ catalysts for asymmetric epoxidation with aqueous hydrogen peroxide 实用且通用的二氢salen (Salalen) 配体:: 用于过氧化氢水溶液不对称环氧化的高对映选择性钛原位催化剂

ADVANCED SYNTHESIS & CATALYSIS

IF4

2007-10-19

PREAI

Berkessel, Albrecht; Brandenburg, Marc; Leitterstorf, Eva; Frey, Julia; Lex, Johann; Schaefer, Mathias

Highly enantioselective epoxidation of 2-methylnaphthoquinone (vitamin K3) mediated by new Cinchona alkaloid phase-transfer catalysts

CHEMISTRY-A EUROPEAN JOURNAL

IF3.7

2007-05-15

PREAI

Berkessel, Albrecht; Guixa, Maria; Schmidt, Friederike; Neudoerfl, Joerg M.; Lex, Johann

Enantiomerically pure isophorone diamine [3-(aminomethyl)-3,5,5-trimethylcyclohexylamine]:: A chiral 1,4-diamine building block made available on large scale

JOURNAL OF ORGANIC CHEMISTRY

IF3.6

2006-11-15

PREAI

Berkessel, Albrecht; Roland, Katrin; Schroeder, Michael; Neudoerfl, Joerg M.; Lex, Johann

Total synthesis of (-)-colchicine via a Rh-triggered cycloaddition cascade

ORGANIC LETTERS

IF5

2005-09-01

PREAI

Graening, T; Bette, V; Neudörfl, J; Lex, J; Schmalz, HG

Highly efficient dynamic kinetic resolution of azlactones by urea-based bifunctional organocatalysts

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

IF16.9

2005-01-18

293

PREAI

Berkessel, A; Cleemann, F; Mukherjee, S; Müller, TN; Lex, J

Second-generation organocatalysts for the highly enantioselective dynamic kinetic resolution of azlactones

CHEMICAL COMMUNICATIONS

IF4.2

2005-01-01

154

PREAI

Berkessel, A; Mukherjee, S; Cleemann, F; Müller, TN; Lex, J

Transition-metal-mediated synthesis of novel carbocyclic nucleoside analogues with antitumoral activity

CHEMISTRY-A EUROPEAN JOURNAL

IF3.7

2004-10-07

PREAI

Velcicky, J; Lanver, A; Lex, J; Prokop, A; Wieder, T; Schmalz, HG

Proline-derived N-sullfonylcarboxamides:: Readily available, highly enantioselective and versatile catalysts for direct aldol reactions

ADVANCED SYNTHESIS & CATALYSIS

IF4

2004-09-21

233

PREAI

Berkessel, A; Koch, B; Lex, J

Enantioselective synthesis of DIANANE, a novel C2-symmetric chiral diamine for asymmetric catalysis

JOURNAL OF ORGANIC CHEMISTRY

IF3.6

2004-04-08

PREAI

Berkessel, A; Schröder, M; Sklorz, CA; Tabanella, S; Vogl, N; Lex, J; Neudörfl, JM

3,8-METHANOAZA[10]ANNULENE (HOMOISOQUINOLINE)

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

IF16.9

2003-12-22

PREAI

TUCKMANTEL, W; ANDREE, G; SEIDEL, A; SCHMICKLER, H; LEX, J; KRAKA, E; HAUG, M; CREMER, D; VOGEL, E

OCTAPHYRIN-(1.0.1.0.1.0.1.0)

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

IF16.9

2003-12-22

105

PREAI

BRORING, M; JENDRNY, J; ZANDER, L; SCHMICKLER, H; LEX, J; WU, YD; NENDEL, M; CHEN, JG; PLATTNER, DA; HOUK, KN; VOGEL, E

Nickel and copper corroles: Well-known complexes in a new light

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

IF16.9

2003-12-22

151

PREAI

Will, S; Lex, J; Vogel, E; Schmickler, H; Gisselbrecht, JP; Haubtmann, C; Bernard, M; Gross, M

Synthesis of erythro-α-amino β-hydroxy carboxylic acid esters by diastereoselective photocycloaddition of 5-methoxyoxazoles with aldehydes

JOURNAL OF ORGANIC CHEMISTRY

IF3.6

2003-11-27

PREAI

Griesbeck, AG; Bondock, S; Lex, J

Spiroconjugation in spirodicorrolato-dinickel(II)

CHEMISTRY-A EUROPEAN JOURNAL

IF3.7

2003-11-18

PREAI

Hohlneicher, G; Bremm, D; Wytko, J; Bley-Escrich, J; Gisselbrecht, JP; Gross, M; Michels, M; Lex, J; Vogel, E

Electronically tuned chiral ruthenium porphyrins: Extremely stable and selective catalysts for asymmetric epoxidation and cyclopropanation

CHEMISTRY-A EUROPEAN JOURNAL

IF3.7

2003-09-26

PREAI

Berkessel, A; Kaiser, P; Lex, J

Spirodiporphyrins - As binuclear metal complexes

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

IF16.9

2003-06-24

PREAI

Vogel, E; Michels, M; Zander, L; Lex, J; Tuzun, NS; Houk, KN

Baeyer-Villiger oxidations with hydrogen peroxide in fluorinated alcohols: Lactone formation by a nonclassical mechanism

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

IF16.9

2002-12-02

PREAI

Berkessel, A; Andreae, MRM; Schmickler, H; Lex, J

An approach to serrulatane diterpenes via endo-selective conjugate nucleophilic addition to arene-Cr(CO)3 complexes

ORGANIC LETTERS

IF5

2002-10-03

PREAI

Dehmel, F; Lex, J; Schmalz, HG

研究方向