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EnglishPhospha-Michael additions of a series of methylene-bridged phosphorus bidentate nucleophiles to 1,2-diaza-1,3-dienes gave monoadducts and bisadducts in high yields under mild conditions. In particular, a series of new ylides and symmetrical diylides have been obtained from bis(diphenyl)phosphanes. The use of diphenylphosphanylamino derivatives gave, through phospha-Michael addition, ylide intermediates that underwent spontaneous intramolecular attack by the amino group belonging to the Michael donor reagent moiety, thus giving access to new heterocycles.
| Titolo: | Phospha-Michael-Type Reactions between 1,2-Diaza-1,3-dienes and Bidentate Nucleophiles: Formation of New Mono- and Diylides and their Elaboration to Heterocycles |
| Autore/i: | BOGA, CARLA; ZANNA, NICOLA; O. A. Attanasi; BACCOLINI, GRAZIANO; L. De Crescentini; FORLANI, LUCIANO; F. Mantellini; S. Nicolini; MICHELETTI, GABRIELE; TOZZI, SILVIA |
| Autore/i Unibo: | |
| Anno: | 2011 |
| Rivista: | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1002/ejoc.201001453 |
| Abstract: | Phospha-Michael additions of a series of methylene-bridged phosphorus bidentate nucleophiles to 1,2-diaza-1,3-dienes gave monoadducts and bisadducts in high yields under mild conditions. In particular, a series of new ylides and symmetrical diylides have been obtained from bis(diphenyl)phosphanes. The use of diphenylphosphanylamino derivatives gave, through phospha-Michael addition, ylide intermediates that underwent spontaneous intramolecular attack by the amino group belonging to the Michael donor reagent moiety, thus giving access to new heterocycles. |
| Data prodotto definitivo in UGOV: | 2013-06-06 15:06:18 |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
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http://hdl.handle.net/11585/98509
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