有机化学 ›› 2003, Vol. 23 ›› Issue (8): 822-826. 上一篇    下一篇

研究论文

微波促进下1-芳甲酰基-4-(2’-苯并呋喃甲酰基)氨基硫脲及其衍生物的合成

李政;权正军;王喜存   

  1. 西北师范大学化学化工学院
  • 发布日期:2003-08-25

Microwave-Promoted Synthesis of 1-Aryol-4-(2'-benzofurancarbonyl)- thiosemicarbazides and Their Derivatives

Li Zheng;Quan Zhengjun;Wang Xigun   

  1. College of Chemistry and Chemical Engineering, Northwest Normal University
  • Published:2003-08-25

微波辐射条件下,首先由2-苯并呋喃甲酰氯在相转移条件下依次与硫氰酸铵和 芳甲酰肼反应合成了一系列1-芳甲酰基-4-(2’-苯并呋喃甲酰基)氨基硫脲,进 一步在微波辐射的条件下由这些氨基硫脲分别与碘酸钾、醋酸或醋酸汞等试剂作用 高产率地制得了1-芳甲酰基-4-(2’-苯并呋喃甲酰基)氨基脲、2-芳基-5-(2’- 苯并呋喃甲酰胺基)-1,3,4-噻二唑和2-芳基-5-(2’-苯并呋喃甲酰胺基)-1, 3,4-(口恶)二唑。

关键词: 苯并呋喃, 氨基硫脲, 氨基脲 P, 噻二唑, 恶二唑, 微波辐射, 酰氯, 酰肼 P

l-Aroyl-4-( 2'-benzofurancarbonyl)-thiosemicarbazides were synthesized by the reactions of 2-benzofurancarbonyl chloride with ammonium thiocyanate and arylcarboxylic acid hydrazides under phase transfer catalysis and microwave irradiation. Treatment of the resulting thiosemicarbazides with potassium iodate, acetic acid or mercuric acetate under microwave irradiation gave l-aroyl-4-(2'- benzofurancarbonyl)-semicarbazides, 2-aryl-5-(2'-benzofurancarboxamido)- l, 3, 4-thiadiazoles and 2-aryl-5-(2'-benzofurancarboxamido)-l, 3, 4- oxadiazoles in high yields, respectively.

Key words: BENZOFURAN;THIOSEMICARBAZIDE;SEMICARBAZIDE P;THIADIAZOLE;oxadiazole, MICROWAVE RADIATION;ACYL CHLORIDES;HYDRAZIDE P

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