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Diels-Alder reactions of N-sulfonyl substituted aza-ortho-xylylenes generated from the corresponding 1,4-dihydro-2H-3,1-benzoxazin-2-one derivatives (Articolo in rivista)
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- Label
- Diels-Alder reactions of N-sulfonyl substituted aza-ortho-xylylenes generated from the corresponding 1,4-dihydro-2H-3,1-benzoxazin-2-one derivatives (Articolo in rivista) (literal)
- Anno
- 1996-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1039/p19960001809 (literal)
- Alternative label
Consonni, R; Croce, PD; Ferraccioli, R; LaRosa, C (1996)
Diels-Alder reactions of N-sulfonyl substituted aza-ortho-xylylenes generated from the corresponding 1,4-dihydro-2H-3,1-benzoxazin-2-one derivatives
in Journal of the Chemical Society. Perkin transactions. I (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Consonni, R; Croce, PD; Ferraccioli, R; LaRosa, C (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://pubs.rsc.org/en/content/articlepdf/1996/p1/p19960001809 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Consonni, R ISMAC Milano
Ferraccioli, R ISTM Milano (literal)
- Titolo
- Diels-Alder reactions of N-sulfonyl substituted aza-ortho-xylylenes generated from the corresponding 1,4-dihydro-2H-3,1-benzoxazin-2-one derivatives (literal)
- Abstract
- N-Tosyl- and N-alkylidene-sulfonyl substituted 1,4-dihydro-2N-3,1-benzoxazin-2-ones 2c-g easily undergo thermal carbon dioxide extrusion leading to the aza-ortho-xylylenes 3c-g, The intermediates 3c,d can be trapped by electron-poor ethylenic and acetylenic dienophiles, giving tetrahydroquinoline and quinoline derivatives, The reactions of 2c with non-symmetrical dienophiles are completely regioselective, N-Alkylidenesulfonyl substituted aza-ortho-xylylenes 3f-g undergo intramolecular Diels-Alder reactions leading to the tricyclic compounds 10 and 11, while the aza-ortho-xylylene generated from 4-(hex-5-enyl)-N-(4-methylphenylsulfonyl)-1,4-tetrahydro-2N-3,1-benzoxazin-2-one undergoes a [1,5] hydrogen shift leading to N-[2-(1E)-hepta-1,6-dien-1-ylphenyl]-4-methylbenzenesulfonamide. (literal)
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