and thenoyl chlorides in 1-methylpyrrolidin-2-one gave, respectively, 2-(2-furyl)- and 2-(2-thienyl)-1,3-benzoxazoles in which the furan and thiophene rings showed no acidophobic properties. Reactions of 2-(2-furyl)- and 2-(2-thienyl)-1,3-benzoxazoles with electrophilic reagents (acylation, bromination, nitration, and sulfonation) afforded products of hydrogen replacement in both hetaryl and benzene
邻
氨基苯酚与
呋喃酰和
壬酰氯在
1-甲基吡咯烷酮-2-一中的缩合反应分别得到2-(2-
呋喃基)-和2-(2-
噻吩基)-1,3-
苯并恶唑,其中
呋喃和
噻吩环显示无疏液性质。2-(2-
呋喃基)-和2-(2-
噻吩基)-1,3-
苯并恶唑与亲电试剂的反应(酰化,
溴化,硝化和磺化)可在杂芳基和苯环中提供氢取代的产物,具体取决于在条件上。