2-chloro-3-quinolinecarboxaldehyde in the synthesis of condensed quinoline systems. 1. Synthesis of derivatives of 3,4-dihydro-2H-[1,3]thiazino[6,5-b]quinolinesстатья
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Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
Аннотация:A method for the synthesis of derivatives of previously unknown heterocyclic systems - 3,4-dihydro-2H-[1,3]thiazino[6,5-b]quinolines - has been developed based on 7,8-dimethyl-2-chloro-3-quinolinecarboxaldehyde via the consecutive steps of conversion into its Schiff’s base with a primary amine, reduction to the corresponding aminomethyl derivative, conversion to the thiourea with isothiocyanates, and heterocyclization by intramolecular substitution of the chlorine atom.