Works matching IS 0018019X AND DT 1991 AND VI 74 AND IP 5
Results: 25
Transesterifications with 1,8-Diazabicyclo[5.4.0]undec-7-ene/Lithium Bromide (DBU/LiBr) - Also Applicable to Cleavage of Peptides from Resins in Merrifleld Syntheses.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1102, doi. 10.1002/hlca.19910740520
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Chiral Cooperativity: The Effect of Distant Chiral Centers in Ferrocenylamine Ligands upon Enantioselectivity in the Gold(I)-Catalyzed Aldol Reaction.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 905, doi. 10.1002/hlca.19910740502
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Conformational Analysis of the cis- and trans-Isomers of FK506 by NMR and Molecular Dynamics.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1027, doi. 10.1002/hlca.19910740513
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CC Bond Formation via Carbon-Centered Radicals Generated from Dicarbonyl(η<sup>5</sup>-cyclopentadienyl) organoiron Complexes.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1143, doi. 10.1002/hlca.19910740524
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Ionization Behavior and Ionization-Dependent Conformation of Raclopride, a Dopamine D<sub>2</sub> Receptor Antagonist.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 956, doi. 10.1002/hlca.19910740506
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3′-Substituted and 2′,3′-Unsaturated 7-Deazaguanine 2′,3′-Dideoxynucleosides: Syntheses and Inhibition of HIV-1 Reverse Transcriptase.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1081, doi. 10.1002/hlca.19910740517
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New Polycyclic Compounds from Photochemical Rearrangements of Some Substituted 2-Azatricyclo[5.2.2.0<sup>1,5</sup>]undeca-4,8,10-trien-3-ones.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1011, doi. 10.1002/hlca.19910740512
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Masthead.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. fmi, doi. 10.1002/hlca.19910740501
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Dimeric Metal Complexes as Mediators for Radical CC Bond-Forming Reactions.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1135, doi. 10.1002/hlca.19910740523
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[5-Leucin]enkephalin-Related Glycoconjugates: Structurally Novel Agents Effective against HIV-1.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 951, doi. 10.1002/hlca.19910740505
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Nitroacetyl Group as a Peptide Synthon: Synthesis of Dipeptides with an α,α-Bisallylglycine Residue at the N-Terminus.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1071, doi. 10.1002/hlca.19910740516
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Ringerweiterung von 1,2-Thiazol-3(2 H)-on-1,1-dioxiden und 3-Amino-2 H-azirinen zu 4 H-1,2,5-Thiadiazocin-6-on-1,1-dioxiden.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1002, doi. 10.1002/hlca.19910740511
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Synthesis and X-Ray Crystal Structure of an Optically Pure Tripodal C<sub>3</sub>-Symmetric Tritertiary Phosphine Bearing Chirality on Phosphorus.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 983, doi. 10.1002/hlca.19910740508
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Regioselectivity, Stereoselectivity, and Isotopically Sensitive Branching in the Fe(I)-Mediated Dehydrogenation of Octane-1,8-diol in the Gas Phase.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1127, doi. 10.1002/hlca.19910740522
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Aromatic nucleophilic substitution. Part 3. Preparation of novel 9-oxo-9 H-thioxanthene- and 9-oxo-9 H-xanthenedicarboximides and -dicarboxylates.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1119, doi. 10.1002/hlca.19910740521
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Zur Oxidation von 1,2-Thiazolen: Ein einfacher Zugang zu 1,2-Thiazol-3(2 H)-on-1,1-dioxiden.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1059, doi. 10.1002/hlca.19910740515
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The Lewis basicity of the [Pt<sub>3</sub>(μ-CO)<sub>3</sub>(PR<sub>3</sub>)<sub>3</sub>] clusters and the X-ray crystal structure of [{ZnI<sub>2</sub>}{Pt<sub>3</sub>(μ-CO)<sub>3</sub>(PPh( i-Pr)<sub>2</sub>)<sub>3</sub>}].
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 989, doi. 10.1002/hlca.19910740509
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Zur Synthese von Derivaten des Pyrido[1,2- a]azepins.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1095, doi. 10.1002/hlca.19910740519
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Stereo and Face Selectivity in Cycloadditions of 1,2,3-Trichloro-3-fluorocyclopropenes to Acyclic Dienes and Furans.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 993, doi. 10.1002/hlca.19910740510
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Synthesis of the Bretonins, Polyolefinic Esterified Glyceryl Ethers of an Unidentified Sponge from the North-Brittany Sea: Absolute Configuration and Novel Structure Assignment.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 941, doi. 10.1002/hlca.19910740504
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Imidazole-Analogues of 6-Epicastanospermine and of 3,7a-Diepialexine.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 934, doi. 10.1002/hlca.19910740503
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1,7-Dideaza-2′,3′-dideoxyadenosine: Syntheses of Pyrrolo[2,3- b]pyndine 2′,3′-Dideoxyribofuranosides and Participation of Purine N(1) during HIV-1 Reverse Transcriptase Inhibition.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1048, doi. 10.1002/hlca.19910740514
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Mitteilungen.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1156, doi. 10.1002/hlca.19910740525
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Synthesis, Isolation, and Full Spectroscopic Characterization of Eleven ( Z)-Isomers of (3 R,3′ R)-Zeaxanthin.
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 969, doi. 10.1002/hlca.19910740507
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Photo-induced molecular transformations. Part 123. One-step synthesis of 1 H-benz[ f]indole-4,9-diones by a new regioselective photoaddition of 2-amino-1,4-naphthoquinone with various alkenes and its application to one-step synthesis of kinamycin skeleton
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- Helvetica Chimica Acta, 1991, v. 74, n. 5, p. 1091, doi. 10.1002/hlca.19910740518
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