90222-68-7Relevant academic research and scientific papers
Pyridone derivatives, their preparation and their use as synthesis intermediates
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, (2008/06/13)
The invention concerns compounds of formula (I) in which: R is —NO2or —NHR3, R3being hydrogen, —COR4(R4selected among (C1-C4) alkyl, aryl and aryl (C1-C4) alkyl, —COOR5(R5selected among (C1-C4) alkyl and aryl (C1-C4) alkyl), —CONHR6or SO2R6(R6selected among (C1-C5) alkyl, aryl and aryl(C1-C4) alkyl), —SO2NR7R8(R7and R8independently of each other represent hydrogen or (C1-C4) alkyl or form with the nitrogen atom a morpholine group), aryl (C1-C4) alkyl, R1is a (C1-C4) alkyl group linear or branched, cyclo (C3-C8) alkyl, aryl optionally substituted, aryl (C1-C4) alkyl optionally substituted, heteroaryl, R2is a hydrogen atom, a (C1-C4) alkyl or arylmethyl group, X is an oxygen or sulphur atom, a —CH2—, —SO2or —NR1— group and Y is a hydrogen atom or (C1-C6) alkyl. The invention is applicable to synthesis intermediates.
MESOIONIC OXAZOLONES. VI. HYDROLYSIS OF ACYLATED DERIVATIVES
Petride, Horia
, p. 1113 - 1122 (2007/10/03)
Nonplanar acylated mesoionic oxazolones 10-16 underwent hydrolysis at ambient temperature, while their planar analogs 8-9 did it only at 100 deg C. The same trend in reactivity was observed in the case of the monocyclic compounds 34a (planar) and 34b (non
Reactivite des esters de la carboxymethylene-1 hydroxy-4 methyl-6 pyridone-2 vis-a-vis des aldehydes aromatiques
Kherfi, Houria-Nacera,Hamdi, Maamar,Speziale, Vincent
, p. 1401 - 1406 (2007/10/02)
A novel condensation of aromatic aldehyde with 2-pyridone: the 4-hydroxy-6-methyl-2-pyridone-1-acetate 1 and its esters 2 and 3 has been explored.It leads to the formation of arylmethanes 7 and 8 obtained by the reaction of one molecule of aldehyde with t
