Studies of 2,3′-biquinolyl. 6. Regioselectivity of nucleophilic addition of organometallic compounds to 1-aklyl-3-(2-quinolyl)quinolinium halides

Abstract

Nucleophilic addition of organometallic lithium and magnesium compounds to 1-alkyl-3-(2-quinolyl)quinolinium cations produces a mixture of the corresponding 1′-alkyl-2′-R-1′,2′-dihydro-2,3′-biquinolyls and 1′-alkyl-4′-R-1′,4′-dihydro-2,3′-biquinolyls. The portion of the latter decreases with increasing “hardness” of the organometallic compound.