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Titolo:
SYNTHESIS OF TRICARBONYLMETHANE DERIVATIVES OF PYRIDINES, PYRIMIDINES, PYRIDAZINES, AND PYRAZOLES BY ANIONIC ORTHO-FRIES REARRANGEMENT
Autore:
SCHNELL B; KAPPE T;
Indirizzi:
GRAZ UNIV,INST ORGAN CHEM A-8010 GRAZ AUSTRIA GRAZ UNIV,INST ORGAN CHEM A-8010 GRAZ AUSTRIA
Titolo Testata:
Monatshefte fuer Chemie
fascicolo: 8-9, volume: 129, anno: 1998,
pagine: 871 - 885
SICI:
0026-9247(1998)129:8-9<871:SOTDOP>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
TENELLIN; ACID;
Keywords:
ANIONIC ORTHO-FRIES REARRANGEMENT; 4-HYDROXY-2(1H)-PYRIDONES; 6-HYDROXY-4(3H)-PYRIMIDONES; 5-HYDROXY-3(2H)-PYRIDAZINONES; PYRAZOLIDINE-3,5-DIONES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
B. Schnell e T. Kappe, "SYNTHESIS OF TRICARBONYLMETHANE DERIVATIVES OF PYRIDINES, PYRIMIDINES, PYRIDAZINES, AND PYRAZOLES BY ANIONIC ORTHO-FRIES REARRANGEMENT", Monatshefte fuer Chemie, 129(8-9), 1998, pp. 871-885

Abstract

Heterocyclic 1,3-dicarbonyl systems, such as 4-hydroxy-2-pyridones, 6-hydroxy-4-pyrimidones, and 5-hydroxy-1-phenyl-3-pyrazolones, are converted with a number of aromatic acid chlorides to their enol esters which can be rearranged in the presence of KCN, triethylamine, and 18-crown-6 as catalyst to yield heterocyclic aryl ketones. This reaction can also be performed in a one-pot procedure without isolation of the esters. Aryl esters of 5-hydroxy-3-pyridazinone can be prepared in the same manner, but not be rearranged.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/09/20 alle ore 10:15:35