Chin. J. Org. Chem. ›› 1991, Vol. 11 ›› Issue (3): 299-302. Previous Articles     Next Articles

Original Articles

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

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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