This protocol describes a novel, mild and convenient route to afford 2-aminobenzoxazoles in high yields, and represents a significant advance towards an environmentally friendly strategy. Aliphatic amines are made to react with carbon disulfide to provide intermediate dithiocarbamates (DTC), which in the presence of 2-aminophenol, subsequently undergo successive intermolecular nucleophilic attack and desulfurization to produce 2-aminobenzoxazoles within 3 h.
此协议描述了一条新颖、温和且便捷的途径,能够在高产率下制备
2-氨基苯并噁唑,标志着向环境友好型策略迈出了重要的一步。脂肪族胺与
二硫化碳反应生成中间体二
硫代
氨基甲酸盐(DTC),在
2-氨基苯酚的存在下,这些中间体随后经历连续的分子间亲核攻击和脱
硫反应,在3小时内即可生成
2-氨基苯并噁唑。