Studies on pyrrolidinones. Synthesis of 4,5-fused-3-hydroxypyridinyl-2-propionic acid derivatives
作者:Rufine Akué-Gédu、Daniel Couturier、Jean-Pierre Hénichart、Benoit Rigo、Gérard Sanz、Luc Van Hijfte、Anne Bourry
DOI:10.1016/j.tet.2011.11.071
日期:2012.1
The synthesis of some condensed indolizinediones derived from pyroglutamic acid is described. Treatment of these ketones in HCl, HBr or MeONa/MeOH furnished aryl propionic acid derivatives. During the ketone transformations, two sequential processes could take place in competitive manner to provide heterocyclic systems bearing carboxylic acid or hydroxycarboxylic acid function. Easy synthesis of amides
Studies on pyrrolidinones. synthesis of fused 1,5-naphthyridines
作者:Rufine Akué-Gédu、Daniel Couturier、Jean-Pierre Hénichart、Benoît Rigo、Gerard Sanz、Luc Van Hijfte、Anne Bourry
DOI:10.1016/j.tet.2012.04.056
日期:2012.7
The synthesis of new condensed indolizinediones derived from pyroglutamic acid is described. The Semmler–Wolff transposition of the oxime of these ketones leads to fused dihydro-1,5-naphthyridinones. Easy introduction of side amino chains indicates that potential DNA-intercalating heterocyclic systems fused on 1,5-naphthyridine nucleus could be obtained in these series.
Studies on pyrrolidinones: a reaction of methylene dichloride under Friedel–Crafts conditions. Synthesis of an α-hydroxymethyl ketone in the hexahydrobenzo[f]indolizine series
When carried out in methylene dichloride, the Friedel–Crafts cyclization of N-arylmethyl pyroglutamates can lead to addition of a CH2OH group in the position α to the newly formed ketone function.