Synthesis of carbonyl and dicarbonyl compounds from organometallic reagents and N-imidazolium-N-methyl amides and bis-amides
作者:María A. de las Heras、Juan J. Vaquero、JoséL. García Navio、Julio Alvarez-Builla
DOI:10.1016/0040-4020(96)00882-4
日期:1996.11
A new method for the synthesis of selective acylating agents is described from the reaction of carboxylic acids with 3-methyl-1-methylamino-3H-imidazol-1-ium salts in the presence of appropriate coupling reagents. The amides and bis-amides thus prepared reacted selectively with organometallics to afford ketones and diketones and with DIBALH to give aldehydes and dialdehydes in high yields.
在适当的偶联剂存在下,由羧酸与3-甲基-1-甲基氨基-3 H-咪唑-1-鎓盐的反应描述了一种合成选择性酰化剂的新方法。如此制备的酰胺和双酰胺与有机金属选择性反应,得到酮和二酮,与DIBALH反应以高产率得到醛和二醛。