An efficient mechanochemical synthesis of amides and dipeptides using 2,4,6-trichloro-1,3,5-triazine and PPh<sub>3</sub>
作者:Chuthamat Duangkamol、Subin Jaita、Sirilak Wangngae、Wong Phakhodee、Mookda Pattarawarapan
DOI:10.1039/c5ra10127a
日期:——
mechanochemical synthesis of amides from carboxylic acids has been developed through an in situ acid activation with 2,4,6-trichloro-1,3,5-triazine and a catalytic amount of PPh3. Under room temperature solvent-drop grinding of the reactants in the presence of an inorganic base, a variety of carboxylic acids including aromatic acids, aliphatic acids, and N-protected α-amino acids undergo amidation to afford
通过用2,4,6-三氯-1,3,5-三嗪和催化量的PPh 3进行原位酸活化,已经开发了从羧酸快速,简便而有效的机械化学合成酰胺的方法。在室温下,在无机碱的存在下,对反应物进行溶剂滴磨,使包括芳族酸,脂族酸和N-保护的α-氨基酸在内的各种羧酸酰胺化,以中等至极好的收率得到酰胺。该方法还与Fmoc,Cbz和Boc保护基兼容,可产生受保护的旋光二肽而没有可检测的消旋作用。