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Results: 1-25/27
Synthesis and structure determination of some oxadiazole-2-thione and triazole-3-thione galactosides
Authors:
Ahmad, R
Iqbal, R
Akhtar, H",Zia-ul-Haq,"Duddeck, H
Stefaniak, L
Sitkowski, J
Citation: R. Ahmad et al., Synthesis and structure determination of some oxadiazole-2-thione and triazole-3-thione galactosides, NUCLEOS NUC, 20(9), 2001, pp. 1671-1682
Authors:
Uzoukwu, BA
Gloe, K
Duddeck, H
Rademacher, O
Citation: Ba. Uzoukwu et al., Crystal structure of 1-(4-propanoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-oneimine)2-aminobenzene, C19H20N4O, and of 1-(4-butanoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-oneimine) 2-aminobenzene, C20H22N4O, Z KRIST-NEW, 216(2), 2001, pp. 251-254
Authors:
Uzoukwu, BA
Gloe, K
Duddeck, H
Rademacher, O
Citation: Ba. Uzoukwu et al., Crystal structure of N,N '-ethylenbis(4-propanoyl-2,4-dihydro-5-methyl 2-phenyl-3H-pyrazol-3-oneimine), C28H32N6O2, Z KRIST-NEW, 216(1), 2001, pp. 151-152
Authors:
Rockitt, S
Wartchow, R
Duddeck, H
Drabczynska, A
Kiec-Kononowicz, K
Citation: S. Rockitt et al., Modes of xanthine complexation to dirhodium tetrakis[(R)-alpha-methoxy-alpha(trifluoromethyl)-phenylacetate] in solution and in the solid state, Z NATURFO B, 56(3), 2001, pp. 319-324
Authors:
Rockitt, S
Duddeck, H
Omelanczuk, J
Citation: S. Rockitt et al., First direct discrimination of chiral phosphorus thionate (P=S) derivatives by multinuclear magnetic resonance spectroscopy in the presence of a chiral dirhodium complex, CHIRALITY, 13(4), 2001, pp. 214-223
Authors:
Duddeck, H
Bradenahl, R
Stefaniak, L
Jazwinski, J
Kamienski, B
Citation: H. Duddeck et al., Synthesis and multinuclear magnetic resonance investigation of some 1,3-selenazole and 1,3-selenazoline derivatives, MAGN RES CH, 39(11), 2001, pp. 709-713
Authors:
Soliman, HSM
Simon, A
Toth, G
Duddeck, H
Citation: Hsm. Soliman et al., Identification and structure determination of four triterpene saponins from some Middle-East plants, MAGN RES CH, 39(10), 2001, pp. 567-576
Authors:
Potmischil, F
Magiera, D
Duddeck, H
Buddrus, J
Citation: F. Potmischil et al., Saturated amine oxides: Part 4. Steric and electric field effects on the O-17 NMR chemical shifts of saturated six-membered azaheterocyclic amine oxides, MAGN RES CH, 39(10), 2001, pp. 593-599
Authors:
Rockitt, S
Duddeck, H
Drabczynska, A
Kiec-Kononowicz, K
Citation: S. Rockitt et al., Chiral discrimination of some annelated xanthine derivatives by the dirhodium method, EUR J ORG C, (20), 2000, pp. 3489-3496
Authors:
Jios, JL
Duddeck, H
Citation: Jl. Jios et H. Duddeck, Synthesis, multinuclear (H-1, C-13 and O-17) magnetic resonance spectroscopy and conformational analysis of some substituted aryl naphthoates, Z NATURFO B, 55(2), 2000, pp. 189-192
Authors:
Jios, JL
Duddeck, H
Citation: Jl. Jios et H. Duddeck, Substituent influences on the keto-enol tautomerism in 1-(2-hydroxyphenyl)-3-alpha- and -beta-naphthylpropane-1,3-diones monitored by H-1 and C-13 NMR spectroscopy, Z NATURFO B, 55(2), 2000, pp. 193-202
Authors:
Ahmad, R
Jabeen, R
Zia-ul-Haq, M
Nadeem, H
Duddeck, H
Verspohl, EJ
Citation: R. Ahmad et al., Chiral aryl sulfonyl hydantoins as hypoglycemic agents, Z NATURFO B, 55(2), 2000, pp. 203-207
Authors:
Jios, JL
Duddeck, H
Citation: Jl. Jios et H. Duddeck, O-17 NMR spectroscopy of 1-(2-hydroxyphenyl)-3-naphthylpropane-1,3-diones.Influences of keto-enol tautomerism and substituents, MAGN RES CH, 38(7), 2000, pp. 512-514
Authors:
Meyer, C
Duddeck, H
Citation: C. Meyer et H. Duddeck, Chiral discrimination of methyl phenyl sulfoxide using dirhodium complexes, MAGN RES CH, 38(1), 2000, pp. 29-32
Authors:
Ahmad, R
Zia-Ul-Haq, M
Hameed, S
Nadeem, H
Duddeck, H
Citation: R. Ahmad et al., Synthesis of 1,5-benzodiazepine nucleosides, J CHEM S P, 22(4), 2000, pp. 302-308
Authors:
Ahmad, R
Zia-ul-Haq, M
Hameed, S
Akhtar, H
Duddeck, H
Citation: R. Ahmad et al., An unexpected synthesis of novel oxygen-bridged 1,5-benzothiazepine derivatives and their reductive five-membered-ring opening, MONATS CHEM, 131(4), 2000, pp. 393-400
Authors:
Tonkikh, N
Duddeck, H
Petrova, M
Neilands, O
Strakovs, A
Citation: N. Tonkikh et al., Unusual formation of 2-aryl-7,7-dimethyl-6,8-epidiseleno-5,6,7,8-tetrahydro-5-quinazolones, EUR J ORG C, (7), 1999, pp. 1585-1588
Authors:
Hoyer, F
Habermehl, G
Duddeck, H
Toth, G
Citation: F. Hoyer et al., Determination of the relative configuration of the C-19 to C-29 fragment of amycin B by H-1 and C-13 NMR investigations, MAGN RES CH, 37(5), 1999, pp. 371-375
Authors:
Balazs, B
Toth, G
Rao, PS
Narender, T
Rao, NS
Horvath, G
Duddeck, H
Citation: B. Balazs et al., Neoadifolin, a new indole alkaloid from the heartwood of Adina cordifolia, MAGN RES CH, 37(10), 1999, pp. 751-753
Authors:
Hanna, AG
Elgamal, MHA
Morsy, NAM
Duddeck, H
Kovacs, J
Toth, G
Citation: Ag. Hanna et al., Two cardenolides from Calotropis procera, MAGN RES CH, 37(10), 1999, pp. 754-757
Authors:
Soliman, HSM
Elgamal, MHA
Simon, A
Toth, G
Horvath, G
Duddeck, H
Citation: Hsm. Soliman et al., A new gypsogenin saponin from Arenaria filicaulis, J NAT PROD, 62(6), 1999, pp. 885-888
Authors:
Duddeck, H
Citation: H. Duddeck, Structure elucidation of saponins and related natural products by NMR spectroscopy, POL J CHEM, 73(1), 1999, pp. 163-171
Authors:
Kumar, JK
Narender, T
Rao, MS
Rao, PS
Toth, G
Balazs, B
Duddeck, H
Citation: Jk. Kumar et al., Further dihydrochalcones from Crotolaria ramosissima, J BRAZ CHEM, 10(4), 1999, pp. 278-280
Authors:
Elgamal, MHA
Hanna, AG
Morsy, NAM
Duddeck, H
Simon, A
Gati, T
Toth, G
Citation: Mha. Elgamal et al., Complete H-1 and C-13 signal assignments of 5 alpha-cardenolides isolated from Calotropis procera R. BR., J MOL STRUC, 477(1-3), 1999, pp. 201-208
Authors:
Hanna, AG
Elgamal, MHA
Hassan, AZ
Duddeck, H
Simon, A
Kovacs, J
Toth, G
Citation: Ag. Hanna et al., Complete H-1 and C-13 signal assignments of 5 beta-cardenolides isolated from Acokanthera spectabilis Hook F., MAGN RES CH, 36(12), 1998, pp. 936-942