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  • Three-component synthesis of dialkyl 2-(alkylimino-methylene)3- (2,2,5-trimethyl-4,6-dioxo-1,3-dioxan-5-yl)-succinates.

Three-component synthesis of dialkyl 2-(alkylimino-methylene)3- (2,2,5-trimethyl-4,6-dioxo-1,3-dioxan-5-yl)-succinates.

Molecular diversity (2006-06-14)
Issa Yavari, Hasan Zare, Bita Mohtat
ABSTRACT

The adduct produced in the reaction between alkyl isocyanides and dialkyl acetylenedicarboxylates was trapped by 2,2,5-trimethyl-1,3-dioxane-4,6-dione (methyl Meldrum's acid), to afford highly functionalized ketenimines in good yields.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Acetylenedicarboxylic acid, 95%
Sigma-Aldrich
2,2,5-Trimethyl-1,3-dioxane-4,6-dione, 97%
Sigma-Aldrich
Acetylenedicarboxylic acid monopotassium salt, ≥98%