- Unsymmetrically substituted furoxans. Part 18. Smiles rearrangement in furoxan systems and in related furazans
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The preparation and the base-promoted Smiles rearrangement of phenylfurazans (series a), 3-phenylfuroxan (series b) and 4-phenylfuroxan (series c) bearing 2-hydroxyethylthio (1), 2-hydroxyethylsulfonyl (2), carbamoylmethylthio (3) and carbamoylmethylsulfo
- Boschi,Sorba,Bertinaria,Fruttero,Calvino,Gasco
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p. 1751 - 1757
(2007/10/03)
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- A generalized and efficient synthesis of 3-amino-, 3-(N-alkylamino)-, 3-(N,N-dialkylamino)-5-alkyl-1,2,4-oxadiazoles by irradiation of 3-alkanoylamino-4-phenyl-1,2,5-oxadiazoles (Furazans)
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Irradiation of 3-alkanoylamino-4-phenyl-1,2,5-oxadiazoles (furazans) at λ = 310 nm in methanol and in the presence of ammonia, primary or secondary aliphatic amines produced excellent yields of 3-amino-, 3-(N-alkylamino)-, 3-(N,N-dialkylamino)-5-alkyl-1,2
- Buscemi,Vivona,Caronna
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p. 917 - 919
(2007/10/02)
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- Heterocyclic Rearrangements. Rearrangement of the Oximes of Some 3-Acyl-1,2,4-oxadiazoles into 1,2,5-Oxadiazoles. A Revision
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The oximation reaction of some 3-acyl-1,2,4-oxadiazoles and the geometry of the product oximes were reinvestigated. 3-Benzoyl-1,2,4-oxadiazoles gave mixtures of (E)-oximes and 1,2,5-oxadiazoles (furazans), these latter deriving from unisolated (Z)-oximes,
- Vivona, Nicolo,Buscemi, Silvestre,Frenna, Vincenzo,Ruccia, Michele,Condo, Michele
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p. 2184 - 2197
(2007/10/02)
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