| abstract |
A process for the preparation of 6-chloro-α-methylcarbazole-2-acetic acid from 6-chloro-α-hydroxy-α-methylcarbazole-2-acetic acid and/or 6-chloro-α-methylene-2-carboxylic acid, is described. The preparation of intermediates, such as, 6-chloro-α-hydroxy-α-methylcarbazole-2-acetic acid and lower alkyl carbazole-2-oxalate, inter alia, is also described. |