Works matching IS 0018019X AND DT 1992 AND VI 75 AND IP 6

Results: 28

Mitteilungen.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 2041, doi. 10.1002/hlca.19920750628
Publication type:
Article
Reaction of Diphenyl Phosphorochloridate with Amide Enolates: A new and convenient synthesis of 2-monosubstituted 3-( n-methyl- n -phenylamino)-2 H-azirines.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1866, doi. 10.1002/hlca.19920750612
By:
- Villalgordo, José M.;
- Heimgartner, Heinz
Publication type:
Article
Glycosylidene Carbenes. Part 9. Regioselective glycosidation of diols and triols: Intra- and intermolecular hydrogen bonds.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1979, doi. 10.1002/hlca.19920750623
By:
- Uhlmann, Peter;
- Vasella, Andrea
Publication type:
Article
Highly Selective Benzylic CH Bond Activation of Toluene 1 by 'Bare' FeO+ in the Gas Phase. Short communication.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1792, doi. 10.1002/hlca.19920750605
By:
- Schröder, Detlef;
- Florencio, Helena;
- Zummack, Waltraud;
- Schwarz, Helmut
Publication type:
Article
Masthead.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. fmi, doi. 10.1002/hlca.19920750601
Publication type:
Article
Carbocyclic analogs of nucleosides. Part 2.. Synthesis of 2′,3′-dideoxy-5′-homonucleoside analogs.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1944, doi. 10.1002/hlca.19920750620
By:
- Jenny, Thomas F.;
- Horlacher, Jennifer;
- Previsani, Nicoletta;
- Benner, Steven A.
Publication type:
Article
Color Chemistry as Reflected in Helvetica Chimica Acta.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1727, doi. 10.1002/hlca.19920750602
By:
- Zollinger, Heinrich
Publication type:
Article
Carbonyliron Complexation and Carbonyl Insertion of Allenic Ketones.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1872, doi. 10.1002/hlca.19920750613
By:
- Trifonov, Latchezar S.;
- Orahovats, Alexander S.;
- Linden, Anthony;
- Heimgartner, Heinz
Publication type:
Article
Organometallic Derivatives of Cycloproparenes.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1995, doi. 10.1002/hlca.19920750624
By:
- Müller, Paul;
- Bernardinelli, Gérald;
- Jacquier, Yvan
Publication type:
Article
Di( tert-butyl)diazomethan: Thermische Zersetzung und Einelektronen-Redox-Reaktionen.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1798, doi. 10.1002/hlca.19920750606
By:
- Bock, Hans;
- Berkner, Bodo;
- Hierholzer, Bernhard;
- Jaculi, Dieter
Publication type:
Article
Synthetic Analogues of Naturally Occurring Spider Toxins.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1909, doi. 10.1002/hlca.19920750617
By:
- Kovács, Lajos;
- Hesse, Manfred
Publication type:
Article
Synthesis and Structure of [4.5.5.5]Fenestranes ( = tetracyclo[5.4.1.04, 12.09, 12]dodecanes).
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1897, doi. 10.1002/hlca.19920750616
By:
- Hirschi, Daniel;
- Luef, Wolfgang;
- Gerber, Peter;
- Keese, Reinhart
Publication type:
Article
Conformational Studies of Marine Polyhalogenated α-Chamigrenes Using Temperature-dependent NMR spectra inverted-chair and twist-boat cyclohexane moieties in the presence of an axial halogen atom at C(8).
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 2026, doi. 10.1002/hlca.19920750627
By:
- Guella, Graziano;
- Chiasera, Giuseppe;
- Pietra, Francesco
Publication type:
Article
Synthese von (±)-Muscopyridin über eine C-ZIP-Ringerweiterungsreaktion.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1834, doi. 10.1002/hlca.19920750609
By:
- Hadj-Abo, Ferrid;
- Hesse, Manfred
Publication type:
Article
Synthesis, Isolation, and NMR-Spectroscopic Characterization of Fourteen ( Z)-Isomers of Lycopene and of Some Acetylenic Didehydro- and Tetradehydrolycopenes.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1848, doi. 10.1002/hlca.19920750611
By:
- Hengartner, Urs;
- Bernhard, Kurt;
- Meyer, Karl;
- Englert, Gerhard;
- Glinz, Ernst
Publication type:
Article
Asymmetric Synthesis of α-Amino Acids and α- N-Hydroxyamino Acids from N-Acylbornane-10,2-sultams: 1-chloro-1-nitrosocyclohexane as a practical [NH.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1965, doi. 10.1002/hlca.19920750622
By:
- Oppolzer, Wolfgang;
- Tamura, Osamu;
- Deerberg, JöRg
Publication type:
Article
Setting the Bridgehead Oxidation Level in trans-Tricyclo[9.3.1.03,8]pentadecanes as a Prelude to the Dual Synthesis of Taxol and Taxusin.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1772, doi. 10.1002/hlca.19920750604
By:
- Paquette, Leo A.;
- Combrink, Keith D.;
- Elmore, Steven W.;
- Zhao, Mangzhu
Publication type:
Article
8-Azaadenine 2′,3′-Dideoxyribonucleosides: Synthesis via 1,2,3- triazolo[4,5- d]pyrimidinyl anions.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1885, doi. 10.1002/hlca.19920750615
By:
- Seela, Frank;
- Mersmann, Karin
Publication type:
Article
Conformational Studies of Marine Polyhalogenated α-Chamigrenes Using Temperature-Dependent NMR Spectra. Cyclohexene-ring flipping and rigid-chair cyclohexane ring in the presence of equatorial halogen atoms at C(8) and C(9).
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 2012, doi. 10.1002/hlca.19920750626
By:
- Guella, Graziano;
- Chiasera, Giuseppe;
- Pietra, Francesco
Publication type:
Article
Reaktion von 2-Diazopropan mit 1,3-Thiazol-5(4 H)-thionen.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1825, doi. 10.1002/hlca.19920750608
By:
- Mlostoń, Grzegorz;
- Heimgartner, Heinz
Publication type:
Article
Sydnones as Masked Hydrazines for Heterocycle Formation: Reactions of 3-(2-substituted phenyl)sydnones with HCl.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1931, doi. 10.1002/hlca.19920750619
By:
- Gelvin, Christopher R.;
- Turnbull, Kenneth
Publication type:
Article
Syntheses of Novel Isopenam and Isocephem Antibiotics. Preparation of a retinamido derivative of a highly strained β-lactam as potent anticancer agent.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1840, doi. 10.1002/hlca.19920750610
By:
- Hakimelahi, Gholam H.;
- Shiao, Min-Jen;
- Hwu, Jih Ru;
- Davari, Hady
Publication type:
Article
Light-Induced Cycloaddition of Furan and addition of methanol to a 4-thiacyclohex-2-enone ( = 2,3-dihydro-4 H-thiin-4-one) and a 4-thiacyclopent-2-enone ( = thiophen-3(2 H)-one).
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1925, doi. 10.1002/hlca.19920750618
By:
- Kowalewski, Ronald;
- Margaretha, Paul
Publication type:
Article
An Enantioselective Approach to the Taxanes: Direct access to functionalized cis-tricyclo[9.3.1.03,8]pentadecanes via α-hydroxy ketone and Wagner- Meerwein rearrangements.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1755, doi. 10.1002/hlca.19920750603
By:
- Paquette, Leo A.;
- Elmore, Steven W.;
- Combrink, Keith D.;
- Hickey, Eugene R.;
- Rogers, Robin D.
Publication type:
Article
Magnetic Circular Dichroism and Electronic Spectra of Tropothione.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1880, doi. 10.1002/hlca.19920750614
By:
- Higashi, Miwako;
- Yamaguchi, Hiroyuki;
- Machiguchi, Takahisa;
- Hasegawa, Toshio;
- Baumann, Harold
Publication type:
Article
High-Yield Formation of Arbutin from Hydroquinone by Cell-Suspension Cultures of Rauwolfia serpentina.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 2009, doi. 10.1002/hlca.19920750625
By:
- Lutterbach, Ralf;
- Stöckigt, Joachim
Publication type:
Article
Strukturänderungen bei der Reduktion von 9-(Diphenylmethyliden)fluoren mit Natrium-Metall zu Schichten (R2O)Na⊕-verknüpfter Kohlenwasserstoff-Dianionen.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1816, doi. 10.1002/hlca.19920750607
By:
- Bock, Hans;
- Ruppert, Klaus;
- Herdtweck, Eberhardt;
- Herrmann, Wolfgang A.
Publication type:
Article
Electrospray-Ionization Mass Spectrometry: Detection of a radical cation present in solution: New results on the chemistry of (tetrahydropteridinone)-metal complexes.
Published in:
Helvetica Chimica Acta, 1992, v. 75, n. 6, p. 1955, doi. 10.1002/hlca.19920750621
By:
- Schäfer, Andrea;
- Fischer, Berthold;
- Paul, Henning;
- Bosshard, René;
- Hesse, Manfred;
- Viscontinif, Max
Publication type:
Article

Works matching IS 0018019X AND DT 1992 AND VI 75 AND IP 6

Mitteilungen.

Reaction of Diphenyl Phosphorochloridate with Amide Enolates: A new and convenient synthesis of 2-monosubstituted 3-( n-methyl- n -phenylamino)-2 H-azirines.

Glycosylidene Carbenes. Part 9. Regioselective glycosidation of diols and triols: Intra- and intermolecular hydrogen bonds.

Highly Selective Benzylic CH Bond Activation of Toluene 1 by 'Bare' FeO<sup>+</sup> in the Gas Phase. Short communication.

Masthead.

Carbocyclic analogs of nucleosides. Part 2.. Synthesis of 2′,3′-dideoxy-5′-homonucleoside analogs.

Color Chemistry as Reflected in Helvetica Chimica Acta.

Carbonyliron Complexation and Carbonyl Insertion of Allenic Ketones.

Organometallic Derivatives of Cycloproparenes.

Di( tert-butyl)diazomethan: Thermische Zersetzung und Einelektronen-Redox-Reaktionen.

Synthetic Analogues of Naturally Occurring Spider Toxins.

Synthesis and Structure of [4.5.5.5]Fenestranes ( = tetracyclo[5.4.1.0<sup>4, 12</sup>.0<sup>9, 12</sup>]dodecanes).

Conformational Studies of Marine Polyhalogenated α-Chamigrenes Using Temperature-dependent NMR spectra inverted-chair and twist-boat cyclohexane moieties in the presence of an axial halogen atom at C(8).

Synthese von (±)-Muscopyridin über eine C-ZIP-Ringerweiterungsreaktion.

Synthesis, Isolation, and NMR-Spectroscopic Characterization of Fourteen ( Z)-Isomers of Lycopene and of Some Acetylenic Didehydro- and Tetradehydrolycopenes.

Asymmetric Synthesis of α-Amino Acids and α- N-Hydroxyamino Acids from N-Acylbornane-10,2-sultams: 1-chloro-1-nitrosocyclohexane as a practical [NH.

Setting the Bridgehead Oxidation Level in trans-Tricyclo[9.3.1.0<sup>3,8</sup>]pentadecanes as a Prelude to the Dual Synthesis of Taxol and Taxusin.

8-Azaadenine 2′,3′-Dideoxyribonucleosides: Synthesis via 1,2,3- triazolo[4,5- d]pyrimidinyl anions.

Conformational Studies of Marine Polyhalogenated α-Chamigrenes Using Temperature-Dependent NMR Spectra. Cyclohexene-ring flipping and rigid-chair cyclohexane ring in the presence of equatorial halogen atoms at C(8) and C(9).

Reaktion von 2-Diazopropan mit 1,3-Thiazol-5(4 H)-thionen.

Sydnones as Masked Hydrazines for Heterocycle Formation: Reactions of 3-(2-substituted phenyl)sydnones with HCl.

Syntheses of Novel Isopenam and Isocephem Antibiotics. Preparation of a retinamido derivative of a highly strained β-lactam as potent anticancer agent.

Light-Induced Cycloaddition of Furan and addition of methanol to a 4-thiacyclohex-2-enone ( = 2,3-dihydro-4 H-thiin-4-one) and a 4-thiacyclopent-2-enone ( = thiophen-3(2 H)-one).

An Enantioselective Approach to the Taxanes: Direct access to functionalized cis-tricyclo[9.3.1.0<sup>3,8</sup>]pentadecanes via α-hydroxy ketone and Wagner- Meerwein rearrangements.

Magnetic Circular Dichroism and Electronic Spectra of Tropothione.

High-Yield Formation of Arbutin from Hydroquinone by Cell-Suspension Cultures of Rauwolfia serpentina.

Strukturänderungen bei der Reduktion von 9-(Diphenylmethyliden)fluoren mit Natrium-Metall zu Schichten (R<sub>2</sub>O)Na<sup>⊕</sup>-verknüpfter Kohlenwasserstoff-Dianionen.

Electrospray-Ionization Mass Spectrometry: Detection of a radical cation present in solution: New results on the chemistry of (tetrahydropteridinone)-metal complexes.