Issue 0, 1972

1,3,4,5-Tetrahydrobenz[cd]indoles and related compounds. Part I. A new synthesis of 3,4-dihydrobenz[cd]indol-5(1H)-one (Uhle's ketone)

Abstract

New syntheses of 4-carboxyindole-3-propionic acid (9) starting from 3-amino-4-chlorobenzoic acid are described. A process involving thermal decarboxylation of 2,4-dicarboxyindole-3-propionic acid (8) in aqueous alkali is shown to be suitable for the large-scale preparation of the diacid (9) and thence Uhle's ketone (1).

Article information

Article type
Paper

J. Chem. Soc., Perkin Trans. 1, 1972, 1121-1123

1,3,4,5-Tetrahydrobenz[cd]indoles and related compounds. Part I. A new synthesis of 3,4-dihydrobenz[cd]indol-5(1H)-one (Uhle's ketone)

R. E. Bowman, T. G. Goodburn and A. A. Reynolds, J. Chem. Soc., Perkin Trans. 1, 1972, 1121 DOI: 10.1039/P19720001121

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