1961 Volume 34 Issue 6 Pages 839-842
The Mannich reaction was applied to 3-isopropyltropolone and 3-isopropyl-5, 7-dimorpholinomethyl, and 3-isopropyl-5, 7-dipiperidinomethyltropolone were obtained. These substituents were easily substituted by diazonium salt or bromine. Some of the Mannich bases obtained were found to retain the zwitterion structure in the solid state.
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