Preparation process for indoles
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United States of America Patent
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Jun 26, 1990
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N/A
app pub date -
Nov 3, 1988
filing date -
Jun 24, 1982
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Expired
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Abstract
Disclosed herein is to react an aniline and an ethylene glycol at a superatmospheric pressure in preparing an indole by subjecting the aniline and ethylene glycol to a gas-phase catalytic reaction in the presence of a catalyst, thereby improving the selectivity of the reaction and the service life of the catalyst.
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