New Synthetic Methodology for Construction of the 1,3,4,5-Tetrahydro-2H-1,3-benzodiazepin-2-one Skeleton
作者:Metin Balci、Cagatay Dengiz、Sevil Özcan、Ertan Şahin
DOI:10.1055/s-0029-1218673
日期:2010.4
We hereby report a new synthetic methodology for construction of the 1,3,4,5-tetrahydro-2H-1,3-benzodiazepin-2-one skeleton. 2-(2-Carboxyethyl)benzoic acid was converted into the corresponding bis(acyl azide). Curtius rearrangement of the diazide followed by reaction with alcohols provided diurethane derivatives. Ring-closure reaction of the diurethanes with base resulted in formation of the 1,3-benzodiazepin-2-one
我们在此报告一种新的合成方法,用于构建1,3,4,5-四氢-2 H -1,3-苯并二氮杂-2-酮骨架。将2-(2-羧乙基)苯甲酸转化为相应的双(酰基叠氮化物)。重氮化物的库尔修斯重排,然后与醇反应,得到二氨基甲酸酯衍生物。二氨基甲酸酯与碱的闭环反应导致形成1,3-苯并二氮杂-2-酮骨架。 酰基叠氮化物-异氰酸酯-Curtius重排-氨基甲酸酯-苯并二氮杂pin酮