Abstract
AbstractIn order to prepare the 2‐chloro derivative of oxolinic acid, ethyl 1‐ethyl‐1,4‐dihydro‐2‐hydroxy‐6,7‐methylenedioxy‐4‐oxo‐3‐quinolinecarboxylate was treated with phosphorus oxychloride. The compound obtained was the 4‐chloro‐2‐oxo‐quinoline. The structure was confirmed by 13C nmr and mass spectral techniques. The 2‐halocarbonitrile was obtained by a Sandmeyer reaction but could not be hydrolysed into the acid.
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