Nucleophilic ring opening of aziridines von Stamm, Helmut

Volltext

cis-trans Pair of a N-Benzoylaziridine: Dependence of Carbonyl Reactivity on Nitrogen Pyramid von Falkenstein, Reinhard, Stamm, Helmut

Volltext

Two-Step 1,2-Shifts by β-Cleavage of Carbenium Ions and Recombination in Friedel−Crafts Reactions of 2-tert-Butyl-1-tosylaziridines1 von Bellos, Konstantinos, Stamm, Helmut

Volltext

Two-Step 1,2-Shifts by β-Cleavage of Carbenium Ions and Recombination in Friedel−Crafts Reactions of 2- tert -Butyl-1-tosylaziridines 1 von Bellos, Konstantinos, Stamm, Helmut

Volltext

Molecular Complexes, 14. Isomeric Arene Complexes of Caffeine and 1,3,7,9-Tetramethyluric Acid Detected with Toluene. Polar Interactions Inverted with Hexafluorobenzene von Stamm, Helmut, Jäkel, Hannelore, Stafe, Jügen

Volltext

Electrostatic repulsion by the charged tail of a radical controls the stereochemistry of coupling with anthracenide. Reversibility of benzylic fragmentation 1,2 von Mall, Thomas, Stamm, Helmut

Volltext

Reactions with aziridines, 51: Ring opening of cis-2-Benzyl-3-phenyl-1-(phenylsulfonyl)aziridine by alkoxide. The first eliminative fission of an aziridine with uncharged nitrogen von Stamm, Helmut, Speth, Dieter

Volltext

Single electron transfer versus nucleophilic ring opening in reactions of cis-trans pairs of activated 2-phenylaziridines. Strong influence of nitrogen pyramid for N-benzoylaziridi... von Falkenstein, Reinhard, Mall, Thomas, Speth, Dieter, Stamm, Helmut

Volltext

ChemInform Abstract: Nucleophilic Ring Opening of Aziridines von Stamm, Helmut

Volltext

Reactions with aziridines. 48. Friedel-Crafts reactions with N-sulfonated aziridines and with open-chain sulfonamides. Sulfonamides as leaving groups in open-chain structures von Stamm, Helmut, Onistschenko, Andreas, Buchholz, Berthold, Mall, Thomas

Volltext

Nitrogen-sulfur cleavage is faster than homolytic ring opening in single-electron transfer to some N-sulfonylaziridines. Competition between SN2 and SET von Bellos, Konstantinos, Stamm, Helmut, Speth, Dieter

Volltext

Reactions with Aziridines; 34 1 . γ-Amidoketones by Amidoethylation of Ketones von Stamm, Helmut, Weiss, Rainer

Volltext

Reactions with Aziridines; 35 1 . α-Aryl-γ-amidobutyric Acids ( N -Protected α-Aryl-GABAs) by Amidoethylation of Dianions of α-Arylacetic Acids von Stamm, Helmut, Weiss, Rainer

Volltext

Reactions with Aziridines; 341. γ-Amidoketones by Amidoethylation of Ketones von Stamm, Helmut, Weiss, Rainer

Volltext

Friedel‐Crafts‐Reaktion einiger N‐Acylaziridine: Oxazoline als Zwischenstufen von Mall, Thomas, Buchholz, Berthold, Stamm, Helmut

Volltext

Molecular Complexes, 9. Arene Complexes of Fervenulin, an Antibiotic Structurally Related to Caffeine. Formation Constants and Complex Topologies Determined by the Refined 1 H‐NMR... von Jäckel, Hannelore, Stamm, Helmut

Volltext

Reaktionen mit Aziridinen, 421) Die Regioselektivität der Ringöffnung von aktivierten 2,2‐Dimethylaziridinen durch Carbanionen des β‐Dicarbonyltyps. Einfluß der Größe des Nucleophi... von Buchholz, Berthold, Stamm, Helmut

Volltext

Reaktionen mit Aziridinen, 36. Arenhydride, 2. SN2‐ und SET‐Reaktionen von N‐Acylaziridinen mit Diphenylmethanid und „Naphthalinhydrid”︁ (Anion von Dihydronaphthalin) von Woderer, Anton, Stamm, Helmut

Volltext

Molecular Complexes, 8 Formation Constants and Topology of Complexes of Tetramethyluric Acid. An 1 H NMR Reinvestigation Based on the AUS Concept and on the Shift Difference Method... von Jäckel, Hannelore, Stamm, Helmut

Volltext

Molecular Complexes, 8 Formation Constants and Topology of Complexes of Tetramethyluric Acid. An 1H NMR Reinvestigation Based on the AUS Concept and on the Shift Difference Method.... von Jäckel, Hannelore, Stamm, Helmut

Volltext