Results 51 to 60 of about 76 (75)
Some of the next articles are maybe not open access.
Chemischer Informationsdienst, 1973
AbstractDas Epoxy‐dihydrophenanthren (I) lagert sich bei Belichtung (Ä = 254 nm) in Benzol‐Lösung in das Dibenzoxepin (II) um.
N. E. BRIGHTWELL, G. W. GRIFFIN
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AbstractDas Epoxy‐dihydrophenanthren (I) lagert sich bei Belichtung (Ä = 254 nm) in Benzol‐Lösung in das Dibenzoxepin (II) um.
N. E. BRIGHTWELL, G. W. GRIFFIN
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Angewandte Chemie International Edition, 2015
AbstractTricyclic dibenzoxepines and dibenzazepines are important therapeutic agents for the pharmaceutical industry and academic research. However, their syntheses are generally rather tedious, requiring several steps that involve a Wagner–Meerwein‐type rearrangement under harsh conditions.
Tobias, Stopka +7 more
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AbstractTricyclic dibenzoxepines and dibenzazepines are important therapeutic agents for the pharmaceutical industry and academic research. However, their syntheses are generally rather tedious, requiring several steps that involve a Wagner–Meerwein‐type rearrangement under harsh conditions.
Tobias, Stopka +7 more
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Chem. Commun., 1996
Substituent effects in the induction of a cholesteric liquid crystal phase by atropisomeric dibenzoxepins suggest that both electrostatic repulsion and polarizability are important factors controlling the stability of arene π-stacking complexes.
Vance E. Williams, Robert P. Lemieux
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Substituent effects in the induction of a cholesteric liquid crystal phase by atropisomeric dibenzoxepins suggest that both electrostatic repulsion and polarizability are important factors controlling the stability of arene π-stacking complexes.
Vance E. Williams, Robert P. Lemieux
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Synlett, 2012
We present a novel three-step protocol for preparing xanthene/thioxanthene and dibenzothiepine/dibenzoxepine from readily available starting materials. The Mizoroki―Heck cyclization as the final step was optimized to afford full conversion of the corresponding diaryl (thio)ethers and furthermore to achieve reasonably good selectivity between the 6-exo ...
Jepsen, Tue Heesgaard +3 more
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We present a novel three-step protocol for preparing xanthene/thioxanthene and dibenzothiepine/dibenzoxepine from readily available starting materials. The Mizoroki―Heck cyclization as the final step was optimized to afford full conversion of the corresponding diaryl (thio)ethers and furthermore to achieve reasonably good selectivity between the 6-exo ...
Jepsen, Tue Heesgaard +3 more
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Thrombosis and Haemostasis, 1992
SummaryWe characterized the thromboxane A2/prostaglandin H2 receptors in porcine coronary artery. The binding of [3H]SQ 29,548, a thromboxane A2 antagonist, to coronary arterial membranes was saturable and displaceable. Scatchard analysis of equilibrium binding showed a single class of high affinity binding sites with a dissociation constant of 18.5 ±1.
I, Miki, A, Ishii
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SummaryWe characterized the thromboxane A2/prostaglandin H2 receptors in porcine coronary artery. The binding of [3H]SQ 29,548, a thromboxane A2 antagonist, to coronary arterial membranes was saturable and displaceable. Scatchard analysis of equilibrium binding showed a single class of high affinity binding sites with a dissociation constant of 18.5 ±1.
I, Miki, A, Ishii
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Synthesis, 2015
Intramolecular Friedel–Crafts acylation reactions of 2-arylphenoxyacetic acids are accomplished using trifluoroacetic anhydride or trifluoromethanesulfonic acid at 0 °C or room temperature. Depending on the reaction conditions, dibenzoxepines or arylcoumaranones are obtained in good yields and with high selectivities (83–100%).
Zhizhong Sun +4 more
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Intramolecular Friedel–Crafts acylation reactions of 2-arylphenoxyacetic acids are accomplished using trifluoroacetic anhydride or trifluoromethanesulfonic acid at 0 °C or room temperature. Depending on the reaction conditions, dibenzoxepines or arylcoumaranones are obtained in good yields and with high selectivities (83–100%).
Zhizhong Sun +4 more
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ChemInform, 1997
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
V. E. WILLIAMS, R. P. LEMIEUX
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
V. E. WILLIAMS, R. P. LEMIEUX
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Chemischer Informationsdienst, 1974
Abstract4‐Chlor‐1‐methyl‐piperidin (I) bzw. α‐3‐Chlor‐tropan (II) werden über die entsprechenden Grignard‐Verbindungen mit den Ketonen (III) über die Carbinole (IV) zn den Phenothiazin‐Analogen (V) und (VIII) umgesetzt.
C. KAISER +7 more
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Abstract4‐Chlor‐1‐methyl‐piperidin (I) bzw. α‐3‐Chlor‐tropan (II) werden über die entsprechenden Grignard‐Verbindungen mit den Ketonen (III) über die Carbinole (IV) zn den Phenothiazin‐Analogen (V) und (VIII) umgesetzt.
C. KAISER +7 more
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Organic Letters
A ligand-free, nickel-catalyzed one-pot cyclocarbonickelation-arylation cascade of functionalized bromoalkyne substrates enables efficient and regioselective access to dibenzoxepine, dibenzoxathiepine, and dibenzothiazepine frameworks in good to high yields. This method exhibits a broad functional group tolerance, including electron-rich, electron-poor,
Sk Shamim Ahamed +4 more
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A ligand-free, nickel-catalyzed one-pot cyclocarbonickelation-arylation cascade of functionalized bromoalkyne substrates enables efficient and regioselective access to dibenzoxepine, dibenzoxathiepine, and dibenzothiazepine frameworks in good to high yields. This method exhibits a broad functional group tolerance, including electron-rich, electron-poor,
Sk Shamim Ahamed +4 more
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Synthesis and Reactions of Some Dibenzoxepins
Journal of the American Chemical Society, 1950Richard H. F. Manske +1 more
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