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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.
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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]。
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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.
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