有机化学 ›› 1991, Vol. 11 ›› Issue (3): 299-302. 上一篇    下一篇

研究论文

双吡唑酮羧酸酯螯合剂的合成

毕韵梅;何森泉   

  1. 云南大学化学系
  • 发布日期:1991-06-25

Syntheses of bispyrazolone carboxylic ester chelating agent

BI YUNMEI;HE SENGQUAN   

  • Published:1991-06-25

本文报道用类似于Johnannes的方法, 由己、辛、壬、癸二酰基丙二酸二乙酯与苯肼在醋酸中反应, 合成丁、己、庚、辛多亚甲基双吡唑酮羧酸酯, 当用乙醇代替醋酸时, 则可得相应的未关环产物─酰基苯肼。同时报道在温和条件下, 合成相应的双吡唑酮的方法。

关键词: 乙醇, 羧酸酯, 乙酸, 红外分光光度法, 锌络合物, 乙酯, 庚烷 P, 质子磁共振谱法, 丙二酸 P, 吡唑酮 P

The reactions of ClCO(CH2)nCOCl(n = 4,6,7,8) gave (EtO2C)2CHCO(CH2)nCOCH(CO2Et)2, which on treatment with phenylhydrazine in HOAc gave bispyrazolone I (R = CO2Et). Hydrolysis and decarboxylation of I (R = CO2Et) in glacial acetic acid gave bispyrazolone I (R = H).

Key words: INFRARED SPECTROPHOTOMETRY, ETHANOL, ZINC COMPLEX, CARBOXYLIC ACID ESTER, ACETIC ACID, ETHYL ESTER, MALONIC ACID P, HEPTANE P, PROTON MAGNETIC RESONANCE SPECTROMETRY, PYRAZOLONE P

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