作者:Carl J. Goddard
DOI:10.1002/jhet.5570280104
日期:1991.1
The synthesis of novel thiophene-2-carboxylic acids bearing alkyl and aryl-substituted oxazole and oxadiazole rings is reported. Sequential functionalization of the key precursor, 5-formyl-2-thiophenecarboxylic acid furnished the intermediate carboxylic acid esters which were converted into desired acids by basic cleavage.
报道了带有烷基和芳基取代的恶唑和恶二唑环的新型噻吩-2-羧酸的合成。关键前体5-甲酰基-2-噻吩羧酸的顺序官能化提供了中间体羧酸酯,其通过碱性裂解被转化为所需的酸。