Reaction of 8‐bromo‐1,7‐phenanthroline with potassium amide in liquid ammonia gives besides the corresponding 8‐amino compound 2‐methyl‐1,3,5‐triazaphenanthrene. In this ring transformation 7‐ethynyl‐aminoquinoline‐8‐aldimine is involved as intermediate, as proved by nmr spectroscopy.
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HAAK et al. (1983) studied this question.
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