首页> 外国专利> Diaryl - 2,5 oxadiazoles - 1,3,4 hydroxy ester, hydroxy acid and acetoxyacide, their process of synthesis 0082.

Diaryl - 2,5 oxadiazoles - 1,3,4 hydroxy ester, hydroxy acid and acetoxyacide, their process of synthesis 0082.

机译:二芳基-2,5恶二唑-1,3,4羟基酯,羟基酸和乙酰氧酰胺,其合成方法[0082]。

摘要

2,5-Diaryl-1,3,4-oxadiazoles containing hydroxy ester, hydroxy acid and acetoxy acid endings, of formula: IMAGE in which R1 represents a hydroxyl or acetyl radical and R2 represents a carboxyl radical and where R1 and R2 preferably simultaneously occupy the 3 and 3' or 4 and 4' positions. The hydroxy esters are prepared by cyclisation of the corresponding diaromatic dihydrazide and the hydroxy acids are obtained by saponification of the above hydroxy esters.
机译:具有羟基酯,羟基酸和乙酰氧基末端的2,5-二芳基-1,3,4-恶二唑,其分子式为:其中R1代表羟基或乙酰基,R2代表羧基,其中R1和R2优选同时占据3和3'或4和4'位置。羟基酯是通过将相应的二芳族二酰肼环化而制备的,而羟基酸是通过将上述羟基酯皂化而获得的。

著录项

  • 公开/公告号NO920355L

    专利类型

  • 公开/公告日1992-07-31

    原文格式PDF

  • 申请/专利权人 ELF ATOCHEM SA;

    申请/专利号NO19920000355

  • 发明设计人 GILLET JEAN-PHILIPPE;

    申请日1992-01-27

  • 分类号C07C243/38;C07D271/107;

  • 国家 NO

  • 入库时间 2022-08-22 05:34:43

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