Journal ArticleDOI
Synthesis of pyran-4-ones from isoxazoles
Chun‐Sing Li,Edith Lacasse +1 more
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TLDR
In this article, a synthesis of mono-, di-and tri-substituted pyran-4-ones from isoxazoles is reported, which undergo a reductive cleavage reaction with Mo(CO) 6 to generate enamino ketone intermediates.About:
This article is published in Tetrahedron Letters.The article was published on 2002-05-06. It has received 51 citations till now. The article focuses on the topics: Pyran & Ketone.read more
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Patent
1,2,4-Oxadiazole benzoic acid compounds and their use for nonsense suppression and the treatment of disease
TL;DR: In this paper, the authors proposed methods, compounds, and compositions for suppressing premature translation termination associated with a nonsense mutation in an mRNA by administering the compounds or compositions of the present invention.
Journal ArticleDOI
Brønsted acid catalyzed and NIS-promoted cyclization of diynones: selective synthesis of 4-pyrone, 4-pyridone, and 3-pyrrolone derivatives.
Yi-Feng Qiu,Fang Yang,Zihang Qiu,Mei-Jin Zhong,Li-Jing Wang,Yu-Ying Ye,Bo Song,Yong-Min Liang,Yong-Min Liang +8 more
TL;DR: Brønsted acid catalyzed tandem cyclization was found to be highly effective for the preparation of a series of polysubstituted 4-pyrones from diynones (yield up to 99%).
Journal ArticleDOI
Synthesis of 3,5-Disubstituted Isoxazoles and Isoxazolines in Deep Eutectic Solvents
Juana M. Pérez,Diego J. Ramón +1 more
TL;DR: In this article, the synthesis of 3,5-disubstituted isoxazoles and related isoxoxazolines using choline chloride:urea as deep eutectic solvent (DES) in a one-pot three-step reaction has been accomplished successfully.
Journal ArticleDOI
A concise approach to 5-substituted-4-pyrones from kojic acid
TL;DR: In this article, a concise approach to 5-substituted-4-pyrones is described based on manipulation of the 5-hydroxy group of readily available kojic acid.
Journal ArticleDOI
Catalyst Control in Positional-Selective C-H Alkenylation of Isoxazoles and a Ruthenium-Mediated Assembly of Trisubstituted Pyrroles.
Pravin Kumar,Manmohan Kapur +1 more
TL;DR: Synthetic elaboration of this C-H alkenylation product via ruthenium and copper co-catalysis leads to an efficient method for the assembly of densely substituted pyrroles.
References
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Book
Comprehensive Heterocyclic Chemistry II
TL;DR: In this article, the CHEC III is organized in 15 volumes and closely follows the organization used in the previous edition: Volumes 1 and 2: Cover respectively three and four-membered heterocycles, together with all fused systems containing a three- or four-measured heterocyclic ring.
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The Reactions of Primary Nitroparaffins with Isocyanates1
Teruaki Mukaiyama,Toshio Hoshino +1 more
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Synthesis of natural products via isoxazoles
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Reductive ring opening of isoxazoles with Mo(CO)6 and water
Makoto Nitta,Tomoshige Kobayashi +1 more
TL;DR: In this article, isoxazoles in the presence of Mo(CO)6 and water causes reductive cleavage of the N-O bond to give β-aminoenones in good yields.
Journal ArticleDOI
Condensed heteroaromatic ring systems. XIX. Synthesis and reactions of 5-(tributylstannyl)isoxazoles
TL;DR: The palladium-catalyzed cross-coupling reaction of the stannylisoxazole with 2-bromonitrobenzene followed by the catalytic hydrogenation over Raney nickel resulted in the formation of 2-methyll-4(1H)-quinolinone in 57% overall yield.