Journal of the American Chemical Society

Synthesis of oxindole

FJD Carlo

Index: Di Carlo Journal of the American Chemical Society, 1944 , vol. 66, p. 1420

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Citation Number: 34

Abstract

The catalytic hydrogenation of o-nitrophenylacetic acid with Adams catalyst has been found to give oxindole in good yield. The starting acid was prepared by a modification of the method of Mayer and Balle.'It has been shown that ethyl o-nitrophenylpyruvate, which is formed by the condensation of ethyl oxalate with o-nitrotoluene, distills with steam. Consequently it was necessary to hydrolyze this ester completely before steam-distilling ...

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