Formation of the same pyrimido[1,2-a]indoles from 1-(oxiran-2-ylmethyl)-1H-indole or [1,3]oxazolo[3,2-a]indole derivatives in its reactions with aromatic amines

Add time:08/12/2019    Source:sciencedirect.com

Reactions of two isomers—2-chloro-1-(oxiran-2-ylmethyl)-1H-indole-3-carbaldehyde or 2-(chloromethyl)-2,3-dihydro[1,3]oxazolo[3,2-a]indole-9-carbaldehyde with aromatic amines lead to the same products in both cases—hydrochlorides of pyrimido[1,2-a]indole derivatives containing two fragments of an amine per one part of the indole nucleus. Its structure was confirmed by X-ray analysis of the crystals base, obtained by alkali treatment of the reaction product (when aryl is 4-MeOC6H4).

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