On the preparation and structural determination of 3-arylisoquinolinones
摘要:
Two new methods for the oxidation of 3-aryl-3,4-dihydroisoquinolinium salts to 3-arylisoquinolinones have been developed: the direct ferricyanide oxidation and the air-oxidation of 1-cyanoisoquinoline intermediates.
Badia, D.; Carrillo, L.; Dominguez, E., Journal of Heterocyclic Chemistry, 1990, vol. 27, # 5, p. 1287 - 1292
作者:Badia, D.、Carrillo, L.、Dominguez, E.、Cameno, A. G.、Martinez de Marigorta, E.、Vicente, T.
DOI:——
日期:——
Oxidation Reactions of 2′-Functionalized 3-Aryltetrahydro and 3,4-Dihydroisoquinolines
作者:Nuria Sotomayor、Esther Domínguez、Esther Lete
DOI:10.1016/0040-4020(95)00827-u
日期:1995.11
Several 2'-functionalized 3-arylisoquinolines in different oxidation stages have been prepared. Fremy's salt or I-2/NaAcO oxidation of 2'-functionalized 3-aryltetrahydroisoquinolines always stops at the 3,4-dihydroisquinoline stage; however, better yields and shorter reaction Limes are obtained with iodine. Air/KOH/DMSO oxidation of 3,4-dihydroisoquinolines furnished the aromatic derivatives with concomitant cleavage of the TBDPS group. While 3-arylisoquinolin-1-(2H)-ones are obtained by air oxidation of 3,4-dihydroisquinolinium salts, the use of DDQ in dioxane resulted in a selective dehydrogenation to the corresponding N-substituted isoquinolinium salts.
DOMINGUEZ, E.;LETE, E., J. HETEROCYCL. CHEM., 1984, 21, N 2, 525-528