Journal of the American Chemical Society

The Preparation of 3, 4-Dimethoxy-2, 5-dicarbethoxythiophene. 3, 4-Dimethoxythiophene

CG Overberger, J Lal

文献索引：Overberger; Lal Journal of the American Chemical Society, 1951 , vol. 73, p. 2956

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被引用次数: 38

摘要

In connection with other work we had occasion to prepare certain thiophene derivatives for comparison with the corresponding thiophene dioxide\. Fager2 has described the preparation of 3, 4-dimethoxythiophene by the reaction of the sodiuni salt obtained from the condensation of ethyl thiodiacetate and ethyl oxalate with methyl sulfate, subsequent hydrolysis with base to give the 3, 4-dimethoxy-2, 5-dicarboxythiophene followed by ...