Divergent Behavior of β-Carbonyl-Substituted 1H-Benzo[f]chromenes Under Henry Reaction Conditions
A series of β-carbonyl-substituted 1H-benzo[f]chromenes has been introduced into the reaction with nitromethane in the presence of ammonium acetate. It has been shown that in the case of 1H-benzo[f]chromene-2-carbaldehydes, the reaction does not stop at the formation of the classical Henry reaction...
Sábháilte in:
| Príomhchruthaitheoirí: | , |
|---|---|
| Formáid: | Статья |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
John Wiley and Sons Inc
2025
|
| Ábhair: | |
| Rochtain ar líne: | https://dspace.ncfu.ru/handle/123456789/30510 |
| Clibeanna: |
Cuir clib leis
Níl clibeanna ann, Bí ar an gcéad duine le clib a chur leis an taifead seo!
|
| Achoimre: | A series of β-carbonyl-substituted 1H-benzo[f]chromenes has been introduced into the reaction with nitromethane in the presence of ammonium acetate. It has been shown that in the case of 1H-benzo[f]chromene-2-carbaldehydes, the reaction does not stop at the formation of the classical Henry reaction products − β-nitroalcohols, but their dehydration to nitrovinylchromenes takes place. In the case of alkyl(benzochromen-2-yl)ketones, 3-alkyl-2-(2-nitrovinyl)-1H-benzo[f]chromenes are formed, and methoxalyl-substituted benzochromenes give 10-amino-7a,8-dihydrobenzo[5,6]chromeno[2,3-b]pyrrol-9(11H)-ones under the Henry reaction conditions. © 2025 Wiley-VCH GmbH. |
|---|