Magnesium Aldimines Prepared by Addition of Organomagnesium Halides to 2,4,6‐Trichlorophenyl Isocyanide: Synthesis of 1,2‐Dicarbonyl Derivatives
作者:Kuno Schwärzer、Andreas Bellan、Maximilian Zöschg、Konstantin Karaghiosoff、Paul Knochel
DOI:10.1002/chem.201900903
日期:2019.7.17
The selective addition of organomagnesium reagents to 2,4,6‐trichlorophenyl isocyanide leading to magnesiated aldimines is reported. These aldimines react with Weinreb amides, ketones, or carbonates to provide the corresponding carbonyl derivatives after acidic cleavage. This allows for an efficient synthesis of 1,2‐dicarbonyl compounds and α‐hydroxy ketones.
据报道有选择地将有机镁试剂添加到2,4,6-三氯苯基异氰化物中,生成镁化的亚胺。这些醛亚胺与Weinreb酰胺,酮或碳酸盐反应,在酸性裂解后可提供相应的羰基衍生物。这样可以有效地合成1,2-二羰基化合物和α-羟基酮。