Three-component coupling (3CC) of kojicacid, aldehyde and 1,3-dione has been achieved in the presence of 10 mol % InCl3 under solvent-free conditions to afford the corresponding dihydropyrano[3,2-b]chromenedione derivatives in good yields. This is the first example of the condensation of kojicacid, aldehyde and 1,3-diones to provide a novel series of kojicacid derivatives.
在无溶剂条件下,在10 mol%InCl 3的存在下,曲酸,醛和1,3-二酮的三组分偶联(3CC)已实现,从而得到相应的二氢吡喃并[3,2- b ] chromenedione衍生物良品率高。这是曲酸,醛和1,3-二酮缩合以提供一系列新的曲酸衍生物的第一个例子。