[EN] PROCESS FOR THE PREPARATION OF DIHYDROXY PROTECTED DERIVATIVES AND NOVEL INTERMEDIATE COMPOUNDS [FR] PROCÉDÉ DE PRÉPARATION DE DÉRIVÉS PROTÉGÉS PAR UN DIHYDROXY ET NOUVEAUX COMPOSÉS INTERMÉDIAIRES
A simple synthesis of 2,3-diketo amides from 3-keto amides
摘要:
The conversion of 3-keto amides to 2-(nosyloxy)-3-keto amides 4a-g followed by DBU-promoted, reductive elimination of p-nitrobenzenesulfinic acid provides a short, simple method for the preparation of 2,3-dioxo amides (tricarbonyl amides) 5a-f in high yields.
Aminolysis of 5-Acyl-2,2-dimethyl-1,3-dioxane-4,6-diones (Acyl Meldrum's Acids) as a Versatile Method for the Synthesis of β-Oxo Carboxamides
作者:Chwang Siek Pak、Heui Cheol Yang、Eun Bok Choi
DOI:10.1055/s-1992-26338
日期:——
5-Acyl-2,2-dimethyl-1,3-dioxane-4,6-diones (acyl Meldrum's acids) underwent aminolysis with various amines to afford the corresponding ß-oxo carboxamides in high yields.
Synthetic transformations using arenesulfonyloxy groups, first as electrophiles, then as leaving groups
作者:Robert V. Hoffman
DOI:10.1016/s0040-4020(01)86369-9
日期:1991.1
A simple synthesis of 2,3-diketo amides from 3-keto amides
作者:Robert V. Hoffmann、Douglas J. Huizenga
DOI:10.1021/jo00022a040
日期:1991.10
The conversion of 3-keto amides to 2-(nosyloxy)-3-keto amides 4a-g followed by DBU-promoted, reductive elimination of p-nitrobenzenesulfinic acid provides a short, simple method for the preparation of 2,3-dioxo amides (tricarbonyl amides) 5a-f in high yields.
[EN] PROCESS FOR THE PREPARATION OF DIHYDROXY PROTECTED DERIVATIVES AND NOVEL INTERMEDIATE COMPOUNDS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DÉRIVÉS PROTÉGÉS PAR UN DIHYDROXY ET NOUVEAUX COMPOSÉS INTERMÉDIAIRES