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A series of thienylazo dyes has been prepared from nitro-substituted 2- and 3-aminothiophenes; colorants from the former were reddish-blue to green, whereas those from the latter were yellow to orange. The 2-aminothiophenes were obtained either by the amination of an activated chlorothiophene or by the functionalisation of thiophenes synthesised using the Gewald reaction. The thienyl-3-azo dyes were...
A series of functionally substituted (η 5 -cyclopentadienyl)dicarbonyliridium compounds have been prepared from reactions of the corresponding substituted cyclopentadienyl-sodium, -lithium, or -thallium reagents with chlorodicarbonyl(pyridine)iridium. Ring-substituted compounds synthesized by this route include chloro, benzyl, pentabenzyl, acetyl, carbomethoxy, methyl, benzoyl, trimethylsilyl,...
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