Synthetic Communications, vol.41, no.13, pp.1881-1888, 2011 (SCI-Expanded)
Microwave-assisted ring-conversion reactions of some pyrido[1,2-a] pyrimidine derivatives to 1,8-naphthyridines have been investigated. Novel furo[3,2-c]-1,8-naphthyridine compounds were synthesized in good yields under thermal reaction conditions. Both microwave and classical heating methods have been found to be satisfactory for the synthesis of new 1,8-naphthyridines.