Straightforward synthesis of alkynyl imines via 1,2-elimination of α,α-dichloroketimines
作者:Sven Mangelinckx、Stijn Rooryck、Jan Jacobs、Norbert De Kimpe
DOI:10.1016/j.tetlet.2007.07.047
日期:2007.9
bromides afforded β-arylated α,α-dichloroketimines in good yields. The latter imines could be easily transformed to the corresponding alkynyl imines, a synthetically important class of compounds, via 1,2-elimination of HCl upon treatment with 2 equiv of sodium hydride in DMSO or potassium tert-butoxide in THF.
Functionalized 2-Chlorocyclopropanecarboxylates through the MIRC Reaction
作者:Norbert De Kimpe、Nicola Giubellina
DOI:10.1055/s-2005-864800
日期:——
Addition of 3,3-dichloro-1-azaallylic anions to acrylates smoothly gave cis-2-chloro-2-imidoylcyclopropanecarboxylates with complete diastereoselection. The resulting cyclopropanes are reduced to 2-(aminomethyl)-2-chlorocyclopropanecarboxylates or hydrolyzed to afford 2-acyl-2-chlorocyclopropylcarboxylates.