Efficient Catalytic Synthesis of Condensed Isoxazole Derivatives via Intramolecular Oxidative Cycloaddition of Aldoximes
| Parent link: | Molecules Vol. 27, iss. 12.— 2022.— [3860, 13 p.] |
|---|---|
| निगमित लेखक: | |
| अन्य लेखक: | , , , , , |
| सारांश: | Title screen The intramolecular oxidative cycloaddition reaction of alkyne- or alkene-tethered aldoximes was catalyzed efficiently by hypervalent iodine(III) species to afford the corresponding polycyclic isoxazole derivatives in up to a 94% yield. The structure of the prepared products was confirmed by various methods, including X-ray crystallography. Mechanistic study demonstrated the crucial role of hydroxy(aryl)iodonium tosylate as a precatalyst, which is generated from 2-iodobenzoic acid and m-chloroperoxybenzoic acid in the presence of a catalytic amount of p-toluenesulfonic acid. |
| भाषा: | अंग्रेज़ी |
| प्रकाशित: |
2022
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| विषय: | |
| ऑनलाइन पहुंच: | https://doi.org/10.3390/molecules27123749 |
| स्वरूप: | इलेक्ट्रोनिक पुस्तक अध्याय |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668602 |
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