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Results: 1-25 | 26-50 | 51-60
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Chemo-, regio-, and diastereoselective synthesis of functionalized cyclopropanes by cyclization of dilithiated nitriles with epibromohydrin
Authors: Langer, P Freifeld, I
Citation: P. Langer et I. Freifeld, Chemo-, regio-, and diastereoselective synthesis of functionalized cyclopropanes by cyclization of dilithiated nitriles with epibromohydrin, ORG LETT, 3(24), 2001, pp. 3903-3905
Synthesis and properties of dimetallic complexes based on a new oxalamidine-derived ligand system with pendant pyridine functionality
Authors: Wuckelt, J Doring, M Gorls, H Langer, P
Citation: J. Wuckelt et al., Synthesis and properties of dimetallic complexes based on a new oxalamidine-derived ligand system with pendant pyridine functionality, EUR J INORG, (3), 2001, pp. 805-811
Double anion capture reactions of anthranilic esters with oxaldiimidoyl dichlorides - Efficient synthesis of 2,2'-biquinazoline-4,4'(3H,3'H)-diones
Authors: Langer, P Wuckelt, J Doring, M Gorls, H
Citation: P. Langer et al., Double anion capture reactions of anthranilic esters with oxaldiimidoyl dichlorides - Efficient synthesis of 2,2'-biquinazoline-4,4'(3H,3'H)-diones, EUR J ORG C, (8), 2001, pp. 1503-1509
Regioselective synthesis of heterospirocyclic isobenzofuranones and medium-sized lactones by multiple anion capture reactions of 1,3-dianions
Authors: Langer, P Doring, M Gorls, H
Citation: P. Langer et al., Regioselective synthesis of heterospirocyclic isobenzofuranones and medium-sized lactones by multiple anion capture reactions of 1,3-dianions, EUR J ORG C, (8), 2001, pp. 1511-1517
One-pot synthesis of functionalized indoles by cyclization of lithiated amides and nitriles with oxaldiimidoyl dichlorides
Authors: Langer, P Anders, JT Doring, M
Citation: P. Langer et al., One-pot synthesis of functionalized indoles by cyclization of lithiated amides and nitriles with oxaldiimidoyl dichlorides, EUR J ORG C, (20), 2001, pp. 3953-3959
New strategies for the efficient synthesis of medium-sized bicyclic gamma-alkylidenebutenolides based on regioselective cyclizations of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with oxalyl chloride
Authors: Langer, P Eckardt, T Saleh, NNR Karime, I Muller, P
Citation: P. Langer et al., New strategies for the efficient synthesis of medium-sized bicyclic gamma-alkylidenebutenolides based on regioselective cyclizations of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with oxalyl chloride, EUR J ORG C, (19), 2001, pp. 3657-3667
Regioselective anionic [3+2] cyclizations of imidazole dinucleophiles withoxaldiimidoyl dichlorides - A combined experimental and theoretical study
Authors: Langer, P Wuckelt, J Doring, M Schreiner, PR Gorls, H
Citation: P. Langer et al., Regioselective anionic [3+2] cyclizations of imidazole dinucleophiles withoxaldiimidoyl dichlorides - A combined experimental and theoretical study, EUR J ORG C, (12), 2001, pp. 2245-2255
Regioselective anionic [3+2] cyclizations of isoxazole, pyrazole and 1,2,4-triazole dinucleophiles - Efficient synthesis of 2,4-dihydroimidazo-[4,5-b]quinoxalines, 3H-imidazo[1,2-b]pyrazoles and 5H-imidazo[2,1-c][1,2,4]triazoles
Authors: Langer, P Wuckelt, J Doring, M Schreiner, PR Gorls, H
Citation: P. Langer et al., Regioselective anionic [3+2] cyclizations of isoxazole, pyrazole and 1,2,4-triazole dinucleophiles - Efficient synthesis of 2,4-dihydroimidazo-[4,5-b]quinoxalines, 3H-imidazo[1,2-b]pyrazoles and 5H-imidazo[2,1-c][1,2,4]triazoles, EUR J ORG C, (12), 2001, pp. 2257-2263
Chemo-, regio-, and stereoselective cyclizations of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with alpha-chloroacetic acid chlorides and alpha-chloroacetic acetals
Authors: Langer, P Krummel, T
Citation: P. Langer et T. Krummel, Chemo-, regio-, and stereoselective cyclizations of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with alpha-chloroacetic acid chlorides and alpha-chloroacetic acetals, CHEM-EUR J, 7(8), 2001, pp. 1720-1727
Regio- and stereoselective synthesis of nor-nonactinic acid derivatives - Kinetic reaction control in the Lewis acid mediated domino reaction of 1,3-dicarbonyl dianions with 1-bromo-2,3-epoxypropanes
Authors: Langer, P Freifeld, I
Citation: P. Langer et I. Freifeld, Regio- and stereoselective synthesis of nor-nonactinic acid derivatives - Kinetic reaction control in the Lewis acid mediated domino reaction of 1,3-dicarbonyl dianions with 1-bromo-2,3-epoxypropanes, CHEM-EUR J, 7(3), 2001, pp. 565-572
Direct transformation of silyl enol ethers into functionalized allenes
Authors: Langer, P Doring, M Seyferth, D Gorls, H
Citation: P. Langer et al., Direct transformation of silyl enol ethers into functionalized allenes, CHEM-EUR J, 7(3), 2001, pp. 573-584
Regio- and diastereoselective cyclization reactions of free and masked 1,3-dicarbonyl dianions with 1,2-dielectrophiles
Authors: Langer, P
Citation: P. Langer, Regio- and diastereoselective cyclization reactions of free and masked 1,3-dicarbonyl dianions with 1,2-dielectrophiles, CHEM-EUR J, 7(18), 2001, pp. 3858-3866
Synthesis of radialene-shaped pyrroles by multiple-anion-capture reactionsof 1,3-dianions
Authors: Langer, P Doring, M Schreiner, PR Gorls, H
Citation: P. Langer et al., Synthesis of radialene-shaped pyrroles by multiple-anion-capture reactionsof 1,3-dianions, CHEM-EUR J, 7(12), 2001, pp. 2617-2627
Evidence from the digestive tract on phylogenetic relationships in ungulates and whales
Authors: Langer, P
Citation: P. Langer, Evidence from the digestive tract on phylogenetic relationships in ungulates and whales, J ZOOL SYST, 39(1-2), 2001, pp. 77-90
Regio- and diastereoselective synthesis of N-aryl-5-alkylidene-5H-pyrrol-2-ones by a new domino reaction of 1,3-dicarbonyl dianions with oxalic acid-bis(imidoyl)chlorides
Authors: Langer, P Doring, M
Citation: P. Langer et M. Doring, Regio- and diastereoselective synthesis of N-aryl-5-alkylidene-5H-pyrrol-2-ones by a new domino reaction of 1,3-dicarbonyl dianions with oxalic acid-bis(imidoyl)chlorides, SYNLETT, (9), 2001, pp. 1437-1439
Regio- and diastereoselective synthesis of lissoclinolide analogues by Lewis acid catalyzed cyclization of the first 1,5-bis(trimethylsilyloxy)-1,3,5-hexatrienes with oxalyl chloride
Authors: Langer, P Freifeld, I
Citation: P. Langer et I. Freifeld, Regio- and diastereoselective synthesis of lissoclinolide analogues by Lewis acid catalyzed cyclization of the first 1,5-bis(trimethylsilyloxy)-1,3,5-hexatrienes with oxalyl chloride, SYNLETT, (4), 2001, pp. 523-525
Efficient synthesis of functionalized 4,5-benzotropones by regioselective cyclization of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with phthalic dialdehyde
Authors: Langer, P Albrecht, U
Citation: P. Langer et U. Albrecht, Efficient synthesis of functionalized 4,5-benzotropones by regioselective cyclization of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with phthalic dialdehyde, SYNLETT, (4), 2001, pp. 526-528
Regio- and diastereoselective synthesis of functionalized cyclopentenones by domino Michael-Ester-Wittig reactions of (3-alkoxycarbonyl-2-oxopropylidene)triphenylphosphoranes with maleic diesters
Authors: Langer, P Kracke, B
Citation: P. Langer et B. Kracke, Regio- and diastereoselective synthesis of functionalized cyclopentenones by domino Michael-Ester-Wittig reactions of (3-alkoxycarbonyl-2-oxopropylidene)triphenylphosphoranes with maleic diesters, SYNLETT, (11), 2001, pp. 1790-1792
Further studies of blood levels of some tumor markers in the area pollutedby polychlorinated biphenyls and control population
Authors: Langer, P Kausitz, J Tajtakova, M Kocan, A Bohov, P Hanzen, E Klimes, I
Citation: P. Langer et al., Further studies of blood levels of some tumor markers in the area pollutedby polychlorinated biphenyls and control population, NEOPLASMA, 48(2), 2001, pp. 139-143
Efficient synthesis of gamma-alkylidenetetronic esters by sequential Lewisacid catalyzed [3+2] cyclizations and palladium-catalyzed cross-coupling reactions
Authors: Langer, P Eckardt, T Schneider, T Gobel, C Herbst-Irmer, R
Citation: P. Langer et al., Efficient synthesis of gamma-alkylidenetetronic esters by sequential Lewisacid catalyzed [3+2] cyclizations and palladium-catalyzed cross-coupling reactions, J ORG CHEM, 66(7), 2001, pp. 2222-2226
Regio- and diastereoselective synthesis of 2-alkylidenetetrahydrofurans bydomino S-N/S-N ' and S-N/S-N reactions of 1,3-dicarbonyl dianions
Authors: Langer, P Holtz, E Karime, I Saleh, NNR
Citation: P. Langer et al., Regio- and diastereoselective synthesis of 2-alkylidenetetrahydrofurans bydomino S-N/S-N ' and S-N/S-N reactions of 1,3-dicarbonyl dianions, J ORG CHEM, 66(18), 2001, pp. 6057-6063
Prospective controlled trial of a standardized meal stimulation test in the detection of pancreaticoduodenal endocrine tumours in patients with multiple endocrine neoplasia type 1
Authors: Langer, P Wild, A Celik, I Kopp, I Bergenfelz, A Bartsch, DK
Citation: P. Langer et al., Prospective controlled trial of a standardized meal stimulation test in the detection of pancreaticoduodenal endocrine tumours in patients with multiple endocrine neoplasia type 1, BR J SURG, 88(10), 2001, pp. 1403-1407
Regioselective synthesis of medium-sized bicyclic butenolides by Lewis acid catalyzed cyclization of cyclic 1,3-bis(trimethylsilyloxy)-1,3-butadieneswith oxalyl chloride
Authors: Langer, P Saleh, NNR
Citation: P. Langer et Nnr. Saleh, Regioselective synthesis of medium-sized bicyclic butenolides by Lewis acid catalyzed cyclization of cyclic 1,3-bis(trimethylsilyloxy)-1,3-butadieneswith oxalyl chloride, ORG LETT, 2(21), 2000, pp. 3333-3336
Efficient synthesis of butenolide-medium ring ether hybrids by a [3+2] cyclization-ring-closing metathesis strategy
Authors: Langer, P Eckardt, T Stoll, M
Citation: P. Langer et al., Efficient synthesis of butenolide-medium ring ether hybrids by a [3+2] cyclization-ring-closing metathesis strategy, ORG LETT, 2(19), 2000, pp. 2991-2993
First domino Mukaiyama-Aldol cyclizations of 1,3-bis(trimethylsiloxy)-1,3-butadienes with 1,2-diketones
Authors: Langer, P Kohler, V
Citation: P. Langer et V. Kohler, First domino Mukaiyama-Aldol cyclizations of 1,3-bis(trimethylsiloxy)-1,3-butadienes with 1,2-diketones, ORG LETT, 2(11), 2000, pp. 1597-1599
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