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Acta Chimica Sinica ›› 1962, Vol. 28 ›› Issue (2): 108-113. Previous Articles Next Articles
翁尊尧1, 王崇言2, 王鼎3
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OWEN TSUNG-YAO1, WANG CHUNG-YEN2, WANG TINC3
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A series of ethyl vitro-methyl-(or alkoxy)-indole-2-carboxylates (Ⅵ) and their corresponding amino compounds (Ⅱ) was prepared. Nitroanilines (Ⅲ) were converted to their diazonium salts. The diazonium salts condensed with ethyl alkylacetoacetate in presence of potassium hydroxide, to give the vitro-phenylhydrazones of ethyl-ketoesters (Ⅳ). Compounds (Ⅳ) were then cyclized with the aid of polyphosphoric acid to substituted vitro indole-2-carboxylates (Ⅴ) and the latter were subsequently reduced to the final products (Ⅱ).
OWEN TSUNG-YAO, WANG CHUNG-YEN, WANG TINC. SYNTHESIS OF SEVERAL ETHYL NITRO-METHYL(OR ALKOXY)-INDOLE-2-CARBOXYLATES AND THEIR CORRESPONDING AMINO COMPOUNDS[J]. Acta Chimica Sinica, 1962, 28(2): 108-113.
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