نتائج البحث - "Bernhard Seiferling"

1

ChemInform Abstract: Photochemical Formation of Heteromethylenecyclopropanes. Part 20. Diastereomeric 3,3,5,5-Tetraalkyl-3,5-dihydro-4H-pyrazol-4-ones

المؤلفون: Helmut Quast, H. Jakobi, Bernhard Seiferling

المصدر: ChemInform. 22

مصطلحات موضوعية: Chemistry, Diastereomer, Organic chemistry, General Medicine

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::9da08779a28461bc8d14d4a1e6c73480
https://doi.org/10.1002/chin.199117136

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2

ChemInform Abstract: Photochemical Formation of Heteromethylenecyclopropanes. Part 24. Retention of Configuration in Two Photochemical Reactions: Formation of Cyclopropanimines by Extrusion of Molecular Nitrogen from Tetraalkyl-4-imino-1-pyrazolines and (

المؤلفون: A. Fuss, Alfred Heublein, H. Jakobi, Bernhard Seiferling, Helmut Quast

المصدر: ChemInform. 23

مصطلحات موضوعية: Molecular nitrogen, law, Chemistry, Extrusion, General Medicine, Radiation chemistry, Photochemistry, Walden inversion, law.invention, Chemiluminescence

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::2c8cb4375fb5f9b0349dcc456410b98a
https://doi.org/10.1002/chin.199203108

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3

Retention of Configuration in Two Photochemical Reactions: Formation of Cyclopropanimines by Extrusion of Molecular Nitrogen from Tetraalkyl‐4‐imino‐1‐pyrazolines and [2 + 1] Cycloreversion of Cyclopropanimines to Isocyanides and Alkenes

المؤلفون: Alfred Heublein, Helmut Quast, Bernhard Seiferling, Harald Jakobi, Andreas Fuß

المصدر: Chemische Berichte. 124:2545-2554

مصطلحات موضوعية: chemistry.chemical_classification, Chemistry, Methyl isocyanide, Diradical, Alkene, Isocyanide, Photodissociation, Imine, Photochemistry, Hydrogen atom abstraction, law.invention, Inorganic Chemistry, chemistry.chemical_compound, law, Walden inversion

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::75a0724629e5eda75792bf68fa93120e
https://doi.org/10.1002/cber.19911241125

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4

Photochemische Bildung von Heteromethylencyclopropanen, 20. Diastereomere 3,3,5,5-Tetraalkyl-3,5-dihydro-4H-pyrazol-4-one

المؤلفون: Helmut Quast, Harald Jakobi, Bernhard Seiferling

المصدر: Liebigs Annalen der Chemie. 1991:41-46

مصطلحات موضوعية: Silica gel, Sodium, Organic Chemistry, Diastereomer, Sodium hypobromite, Ethyl acetate, chemistry.chemical_element, Medicinal chemistry, chemistry.chemical_compound, chemistry, Swern oxidation, Sodium azide, Organic chemistry, Petroleum ether, Physical and Theoretical Chemistry

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::94609a4397bf77ed191d15e91584c3d7
https://doi.org/10.1002/jlac.199119910107

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5

Competing pathways in the photonitrogenation of a 3,5-dihydro-4H/-1,2,3,-triazol-4-one. A novel route to aziridinones

المؤلفون: Helmut Quast, Bernhard Seiferling

المصدر: Tetrahedron Letters. 23:4681-4684

مصطلحات موضوعية: chemistry.chemical_compound, chemistry, Amide, Isocyanide, Organic Chemistry, Drug Discovery, Photodissociation, Acetone, chemistry.chemical_element, Organic chemistry, Lithium, Methanol, Biochemistry

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::676869414227ec3e3bf237c5603a4a77
https://doi.org/10.1016/s0040-4039(00)85686-5

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6

Photochemische Stickstoff‐Eliminierung aus 3,5,5‐Trialkyl‐3,5‐dihydro‐4 H ‐1,2,3‐triazol‐4‐onen. Aziridinone, Iminooxirane und Folgeprodukte

المؤلفون: Bernhard Seiferling, Helmut Quast, Georg Meichsner

المصدر: Chemische Berichte. 120:225-230

مصطلحات موضوعية: chemistry.chemical_classification, Ketone, Stereochemistry, Isocyanide, Methoxide, Medicinal chemistry, Isocyanate, Inorganic Chemistry, chemistry.chemical_compound, chemistry, Acetone, Lactam, Dimethylformamide, Methanol

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::9090f2e42dee36f5305a092afc645e33
https://doi.org/10.1002/cber.19871200215

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7

Thermolyse und einige Reaktionen von 3‐Alkyl‐3,5‐dihydro‐5,5‐dimethyl‐4 H ‐1,2,3‐triazol‐4‐onen und des 1‐ tert ‐Butyl‐3,3‐dimethyl‐2‐aziridinons. Ist das acyclische Aziridinon‐Isomere ein Zwitterion?

المؤلفون: Georg Meichsner, Bernhard Seiferling, Helmut Quast

المصدر: Chemische Berichte. 120:217-223

مصطلحات موضوعية: Inorganic Chemistry, chemistry.chemical_compound, chemistry, Stereochemistry, Amide, Isocyanide, Lactam, Dimethylformamide, Methanol, Solvolysis, Solvent effects, Medicinal chemistry, Sodium methoxide

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::96221cf73376a759aeeaff16805efe7f
https://doi.org/10.1002/cber.19871200214

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8

Brückenkopfazide, 5. Photolyse von 9-Azidotriptycenen. – Addition von Methanol oder Wasser an extrem gespannte intermediäre Brückenkopfimine

المؤلفون: Bernhard Seiferling, Helmut Quast, Philipp Eckert

المصدر: Liebigs Annalen der Chemie. 1985:696-707

مصطلحات موضوعية: Sulfonyl, chemistry.chemical_classification, Hypophosphorous acid, Aqueous solution, Organic Chemistry, Medicinal chemistry, Anthrone, Solvent, chemistry.chemical_compound, chemistry, Organic chemistry, Methanol, Azide, Physical and Theoretical Chemistry, Azepine

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::c55e92c2827b0eed1c712e297bb6e4c9
https://doi.org/10.1002/jlac.198519850406

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9

Photolyse von 9‐Azido‐10‐methyltriptycen. – Dimerisierung eines extrem gespannten Brückenkopfimins durch verschiedene Cycloadditionen

المؤلفون: Bernhard Seiferling, Philipp Eckert, Helmut Quast

المصدر: Chemische Berichte. 118:3535-3550

مصطلحات موضوعية: Inorganic Chemistry, chemistry.chemical_classification, chemistry.chemical_compound, Polycyclic compound, chemistry, Double bond, Stereochemistry, Dimer, Imine, Nuclear magnetic resonance spectroscopy, Azide, Anthrone, Cycloaddition

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::a15b5173f1a52c8e28ad9a753473e562
https://doi.org/10.1002/cber.19851180910

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10

Photolyse des 9‐Azidotriptycens. – Struktur des Dimeren eines extrem gespannten Brückenkopfimins

المؤلفون: Karl Peters, Bernhard Seiferling, Hans Georg von Schnering, Eva-Maria Peters, Helmut Quast, Philipp Eckert

المصدر: Chemische Berichte. 118:3058-3069

مصطلحات موضوعية: Inorganic Chemistry, chemistry.chemical_classification, chemistry.chemical_compound, Polycyclic compound, chemistry, Cyclohexane, Stereochemistry, Diradical, Dimer, Imine, Diastereomer, Azide, Nuclear magnetic resonance spectroscopy

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::85da3a8825704cf64ce09801317ba4d9
https://doi.org/10.1002/cber.19851180806

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11

Brückenkopfazide, 3. Photolyse des 1-Azido-4-methylbicyclo[2.2.2]octans

المؤلفون: Bernhard Seiferling, Helmut Quast

المصدر: Liebigs Annalen der Chemie. 1982:1553-1565

مصطلحات موضوعية: chemistry.chemical_classification, Bicyclic molecule, Organic Chemistry, Iodide, Imine, Medicinal chemistry, Adduct, chemistry.chemical_compound, chemistry, Chlorobenzene, Zinc iodide, Organic chemistry, Azide, Physical and Theoretical Chemistry, Octane

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::27d5964ac27964d50bf4653e8cf3c382
https://doi.org/10.1002/jlac.198219820815

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12

The photolysis of 1-azido-4-methylbicyclo[2.2.2]octane and 1-azidoadamantane in low-temperature matrices

المؤلفون: Helmut Quast, Charles J. Shields, Bernhard Seiferling, Ian R. Dunkin

المصدر: Tetrahedron Letters. 24:3887-3890

مصطلحات موضوعية: Argon, Bicyclic molecule, Infrared, Organic Chemistry, Imine, Photodissociation, Matrix isolation, chemistry.chemical_element, Photochemistry, Biochemistry, chemistry.chemical_compound, chemistry, Drug Discovery, Azide, Octane

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::9fa819d36af9a488c35daf6e3f80cb91
https://doi.org/10.1016/s0040-4039(00)94303-x

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13

Reluctant azoalkanes: the photochemical behavior of acyclic, bridgehead-centered azoalkanes on 185- and 350-nm irradiation

المؤلفون: Paul S. Engel, Bernhard Seiferling, D. W. Horsey, Helmut Quast, Waldemar Adam, Woo-Ki Chae, Francois Mazenod, Yoshinori Nishizawa, Sharon A. Baughman

المصدر: Journal of the American Chemical Society. 105:6141-6145

مصطلحات موضوعية: chemistry.chemical_compound, Colloid and Surface Chemistry, Azo compound, Bicyclic molecule, Chemistry, Quantum yield, General Chemistry, Irradiation, Singlet state, Photochemistry, Biochemistry, Catalysis, Cis trans isomerization

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::cca228baf6fe26469d880574feb702fd
https://doi.org/10.1021/ja00357a028

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14

Notizen Brückenkopfazide, 4. Notiz zur Herstellung von Brückenkopfaminen durch Reduktion von Brückenkopfaziden

المؤلفون: Bernhard Seiferling, Helmut Quast

المصدر: Liebigs Annalen der Chemie. 1982:1566-1568

مصطلحات موضوعية: Chemistry, Organic Chemistry, Organic chemistry, Physical and Theoretical Chemistry, Catalytic hydrogenation

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::ddc1c2da2bb8919b2a9ab912c2ba491c
https://doi.org/10.1002/jlac.198219820816

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15

ChemInform Abstract: Photochemical Formation of Methylenecyclopropane Analogues. Part 13. Thermolysis and Some Reactions of 3-Alkyl-3,5-dihydro-5,5-dimethyl-4H-1,2,3-triazol-4-ones and 1-tert-Butyl-3,3-dimethyl-2-aziridinone. Is the Acyclic Aziridinone Is

المؤلفون: Bernhard Seiferling, Helmut Quast, G. Meichsner

المصدر: ChemInform. 18

مصطلحات موضوعية: Tert butyl, chemistry.chemical_classification, chemistry.chemical_compound, chemistry, Stereochemistry, Zwitterion, Thermal decomposition, General Medicine, Methylenecyclopropane, Medicinal chemistry, Alkyl

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::334ecf89f5f0dfacd1ef051a73ce54e6
https://doi.org/10.1002/chin.198723106

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16

ChemInform Abstract: Photochemical Formation of Methylenecyclopropane Analogues. Part 14. Photochemical Elimination of Molecular Nitrogen from 3,5,5-Trialkyl-3,5-dihydro-4H-1,2,3-triazol-4-ones. Aziridinones, Iminooxiranes and Products

المؤلفون: G. Meichsner, Bernhard Seiferling, Helmut Quast

المصدر: ChemInform. 18

مصطلحات موضوعية: chemistry.chemical_compound, Molecular nitrogen, chemistry, Organic chemistry, General Medicine, Methylenecyclopropane

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::4697f117f70e2eeebfa357368c82936a
https://doi.org/10.1002/chin.198723107

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17

ChemInform Abstract: Photochemical Formation of Methylenecyclopropane Analogues. Part 12. Synthesis of 3,5,5-Trialkyl-3,5-dihydro-4H-1,2,3-triazol-4-ones

المؤلفون: Bernhard Seiferling, G. Meichsner, Helmut Quast

المصدر: ChemInform. 18

مصطلحات موضوعية: chemistry.chemical_compound, chemistry, General Medicine, Methylenecyclopropane, Medicinal chemistry

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::61f12b86329d553d27961e654234989a
https://doi.org/10.1002/chin.198712198

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18

Berichtigung zu dem Beitrag Brückenkopfazide, 5. — Photolyse von 9-Azidotriptycenen. — Addition von Methanol oder Wasser an extrem gespannte intermediäre Brückenkopfimine

المؤلفون: Bernhard Seiferling, Philipp Eckert, Helmut Quast

المصدر: Liebigs Annalen der Chemie. 1985:1927-1927

مصطلحات موضوعية: Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Medicinal chemistry

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::1906e19e80c6e144c68c5087a15e4133
https://doi.org/10.1002/jlac.198519850921

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