Diels–Alder Reactions of 5,6-Dihydro-2(1H)-pyridones
摘要:
The Diels-Alder reaction of achiral 5,6-dihydro-2(1H)-pyridones 12a,b and enantiopure 5,6-dihydro-2(1H)-pyridones 16a,b with a variety of diversely substituted buta-1,3-dienes under thermal or catalytic conditions, to give partially reduced isoquinolones 18-33 and 35-37, is reported. (C) 2000 Elsevier Science Ltd. All rights reserved.
Diels–Alder Reactions of 5,6-Dihydro-2(1H)-pyridones
摘要:
The Diels-Alder reaction of achiral 5,6-dihydro-2(1H)-pyridones 12a,b and enantiopure 5,6-dihydro-2(1H)-pyridones 16a,b with a variety of diversely substituted buta-1,3-dienes under thermal or catalytic conditions, to give partially reduced isoquinolones 18-33 and 35-37, is reported. (C) 2000 Elsevier Science Ltd. All rights reserved.
corresponding phenyl selenoesters, aldehydes, and alpha-keto carboxylic acids and the scope of their participation in intermolecular addition reactions to carbon-carbon double bonds have been studied. Whereas the phenyl selenoester method has provided easy access to a variety of 1,4-dicarbonyl compounds bearing the 2-acylindole moiety, the glyoxylic acid route has been employed for the preparation of 2-indolyl
1-(2-Indolyl)vinylstannane 1b has been transmetallated into both the corresponding HO mixed cyanocuprate and the Cu-catalysed organomagnesium reagent, and the reactivity of these species towards N-alkyl-3-acylpyridinium salts 8 and 17 has been tested.
Diels-Alder reactions of 5,6-dihydro-2(1H)-pyridones. Preparation of partially reduced cis-isoquinolones and cis-3,4-disubstituted piperidines
作者:Núria Casamitjana、Angela Jorge、Carles G. Pérez、Joan Bosch、Enric Espinosa、Elies Molins
DOI:10.1016/s0040-4039(97)00280-3
日期:1997.3
The Diels-Alder reactions of 5,6-dihydro-2(1H)-pyridones with a variety of diversely substituted butadienes to give partially reduced isoquinolones is reported. Reductive ozonolysis of the resulting octahydroisoquinolones gave cis-3,4-disubstituted piperidines. (C) 1997 Elsevier Science Ltd.