Thermally induced and transition metal catalyzed aza-Claisen rearrangement of 2-cyclopropylideneethyl imidates: A new entry to 1-aminocyclopropanecarboxylic acids
作者:Karine Estieu、Jean Ollivier、Jacques Salaün
DOI:10.1016/0040-4039(95)00380-u
日期:1995.4
(2-Cyclopropylideneethyl) acetimidates underwent thermallyinduced or palladium (II) catalyzed aza-Claisen rearrangement into 1-ethenylcyclopropyl acetamides, providing convenient precursors to 1-amino cyclopropanecarboxylic acids (ACCs). Due to the regioselectivity of the nucleophilic substitution of the π 1,1-dimethylene allyl palladium complexes by soft nucleophiles, the palladium (0) catalysis