Coupled Processes of Methoxycarbonylation and Cyclization of N,haloanilines.-Methoxycarbonylation of the title diynes (I) yields the usual acyclic diesters (IV) and/or the pyridine derivatives (V). The latter are formed by further addition of a methoxycarbonyl group to the diesters and subsequent cyclization. The ratios depend on the substitution pattern of the aryl moiety. -(ABDULGANIEVA, S. A.; MANCHUK, Z. N.; ZHAPAROVA, Z. M.; ERZHANOV, K. B.; Zh.
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