Results 91 to 100 of about 319 (128)

A New Synthesis of Methyl 7H-Dibenz[b,g]oxocin-6-carboxylates from Morita-Baylis-Hillman Adducts of 2-Phenoxybenzaldehydes

Synthesis, 2011
A new synthetic method for methyl 7 H-dibenz[ B, G]oxocin-6-carboxylatesby Friedel-Crafts reaction of readily available bromidesof Morita-Baylis-Hillman adducts with aluminumchloride has been developed.
Kee‐Jung Lee, Sanghyun Ahn, Seung Ho Jang, Eun‐Gu Han   +3 more
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A novel method for the synthesis of 5,6-dihydro-4H-oxocin-4-ones: 6-endo-dig versus 8-endo-dig cyclizations

Tetrahedron Letters, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
N. Rosas, Pankaj Sharma, C. Alvarez, Elizabeth Gómez, Y. Gutierrez, María Virginia Méndez, Rubén A. Toscano, Lorena Maldonado   +7 more
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Iron-Catalyzed Reductive Ring-Rearrangement Reaction of Bridged Benzo[b]oxocin-4-ones with Grignard Reagents to Afford Bridged Benzo[b]oxocin-2-ols

Organic Letters
An iron-catalyzed reductive ring-rearrangement reaction of bridged benzo[b]oxocin-4-ones with Grignard reagents to produce bridged benzo[b]oxocin-2-ols is reported. Mechanistic studies indicate that an iron redox catalysis cycle involving oxidative addition to the C-O bond by low-valence iron and β-methoxyl elimination as key steps operates in this ...
Yishuai Fan, Haoran Yang, Run-Jie Peng, Dunru Zhu, Ruwei Shen   +4 more
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ChemInform Abstract: SYNTH. UND THERMODYNAMISCHE ACIDITAET VON DIBENZ(B,G)OXOCIN

Chemischer Informationsdienst, 1972
AbstractXanthylium‐perchlorat (I) reagiert mit Diazoessigester (II) in Acetonitril zu den Addukten (III) und (IV),wobei (IV) bei der Thermolyse in (III) übergeführt werde kann.
H. S. Kasmai, H. W. Whitlock
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Synthesis of New Structural Analogues of Natural Integrastatins with a Basic Epoxybenzo[7,8]oxocine Skeleton: Combined Experimental and Computational Study

Synthesis, 2023
AbstractIn this work, the cyclization reactivity of various 3-acetyl-2-methylpyridines (including 3-acetyl-2-methylquinoline) containing both electron donor and acceptor substituents with salicylaldehyde into epoxybenzooxocino[4,3-b]pyridine derivatives was studied. The reactions were carried out in mild (under room temperature or reflux in 2-propanol)
Ivan V. Kulakov, Alena L. Stalinskaya, Semyon Y. Chikunov, Irina A. Pustolaikina, Yuri V. Gatilov   +4 more
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Synthesis of Oxepin- and Oxocin- Annulated Pyrimidine Derivatives by Claisen Rearrangement and Ring Closing Metathesis/Ring Closing Enyne Metathesis (SUPORTING DATA)

Letters in Organic Chemistry, 2006
Krishna Majumdar, Pradip K. Maji, Habibur Rahaman, Brindaban Roy   +3 more
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Darstellung von 4, 5, 6, 7-Tetrahydrooxepin und 5, 6, 7, 8-Tetrahydro-4H-oxocin

Tetrahedron Letters, 1966
Friedrich Nerdel, Joachim Buddrus, Walter Brodowski, Peter Weyerstahl   +3 more
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Correction to “Iron-Catalyzed Reductive Ring-Rearrangement Reaction of Bridged Benzo[b]oxocin-4-ones with Grignard Reagents to Afford Bridged Benzo[b]oxocin-2-ols”

Organic Letters
Yishuai Fan, Haoran Yang, Run-Jie Peng, Dunru Zhu, Ruwei Shen   +4 more
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Palladium-catalyzed [4 + 4] cycloadditions for highly diastereo- and enantioselective synthesis of functionalized benzo[b]oxocines

Organic Chemistry Frontiers, 2022
An efficient palladium-catalyzed asymmetric [4 + 4] cycloaddition of highly reactive ortho-quinone methides with γ-methylidene-δ-valerolactones for the construction of functionalized eight-membered benzo[b]oxocine derivatives has been developed.
Xunhua Wang, Jianfeng Yang, Ruifeng Lv, Pengfei Song, Denghui Ye, Jitian Liu, Xiaoxun Li   +6 more
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Synthesis of Oxepine‐, Oxocine‐ and Azepine‐Annulated Carbazole Derivatives by Combined Claisen Rearrangement and Diene/Enyne Metathesis.

ChemInform, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Shital K. Chattopadhyay, Shankar P. Roy, Debalina Ghosh, Gautam Biswas   +3 more
openaire   +1 more source