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When attempting to synthesize symmetric 2,2′-dihydroxy-4,4′-dimethyl-azobenzene from 5-methyl-2-nitrophenol by reductive methods based on two literature procedures, an unexpected product was isolated in 30% yield. Full analysis by mass spectrometry, NMR spectroscopy, and single-crystal X-ray structure analysis, proved this product to be tricyclic 2-amino-4,4α-dihydro-4α,7-dimethyl-3H-phenoxazin-3-one...
In search of a new way to attach organometallic pincer complexes to amines via an amide bond, the N-hydroxysuccinimide ester of 3,5-bis-[(dimethylamino)methyl]-4-(iodoplatino(II))-benzoic acid was synthesized. This compound reacts with several primary amines to form the corresponding amides cleanly and in high yields.
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