Synthesis of Hydroxamic Acids by Using the Acid Labile O-2-Methylprenyl Protecting Group
作者:Aigars Jirgensons、Anna Nikitjuka
DOI:10.1055/s-0032-1317687
日期:——
Coupling of carboxylic acids with O-2-methylprenyl hydroxylamine provided O-protected hydroxamic acids, which could be deprotected by treatment with trifluoroacetic acid (TFA) in dichloromethane giving volatile by-products. Protected hydroxamic acids could be N-arylated or alkylated followed by deprotection to give N-substituted hydroxamic acids.
羧酸与 O-2-甲基异戊二烯羟胺的偶联提供了 O-保护的异羟肟酸,可以通过在二氯甲烷中用三氟乙酸 (TFA) 处理来脱保护,产生挥发性副产物。受保护的异羟肟酸可以被 N-芳基化或烷基化,然后去保护以得到 N-取代的异羟肟酸。