Diazaindenes (azaindoles). Part III. Reactions of Vilsmeier reagents leading to 3-formyl-1,6-diazaindene and -1,4-diazabenz[f]indene
Journal of the Chemical Society C: Organic Pub Date: DOI: 10.1039/J39700000498
Abstract
The action of the two Vilsmeier reagents from dimethylformamide and phosphoryl chloride or thionyl chloride on 2-amino-3-picoline, 3-amino-4-picoline, and 4-amino-3-picoline is reported. The first reagent with 3-amino-4-picoline gave 3-formyl-1,6-diazaindene (pyrrolo[2,3-c]pyridine-3-carbaldehyde) and NN-dimethyl-N′-(4-methyl-3-pyridyl)formamidine, and with 3-amino-2-methylquinoline yielded 3-formyl-1,4-diazabenz[f]-indene(pyrrolo[3,2-b]quinoline-3-carbaldehyde). Some modifications of the aldehydes were investigated; 3-(NN-dimethylaminomethyl)-1,6-diazaindene was prepared.
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Journal Name：Journal of the Chemical Society C: Organic
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CAS no.: 89640-58-4
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