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Condensation of 1,3-trimethinecyanines with arylamines. Structural assignment of the products by NOE difference spectroscopy

✍ Scribed by Gábor Tóth; István Bitter; Glen Bigam; Ottó Strausz

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
738 KB
Volume
24
Category
Article
ISSN
0749-1581

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✦ Synopsis

The condensation of 1,3-dichlorotrimethinecyanines and arylamines was found to be highly regioselective. Nuclear Overhauser effect difference experiments proved a linear structure for the formed perchlorates of l-aza-9-azonia-lll-benz~indene, l-aza-9-azouiaanthracene, l,l0-diaza-4a-azonia-9-thiacyclopenta[b]fluorene, 6-aza-%azoniabenz[u]anthracene and 6,7-diaza-lla-azoniabenz[u]anthracene derivatives. NOE difference experiments, together with 2D proton-proton and proton-carbon correlation measurements, allowed the complete 'H and -C assignment.

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