Reactions of Guanidine and Thiourea with α,β,γ,δ-Unsaturated Ketones (Heterocyclic Compounds, 80)

Article abstract of DOI:10.1007/BF00799973

Guanidine and phenylguanidine react with phenylhexadienone 1b and 1,5-diaryl-2,4-pentadien-1-ones 1c-k respectively (via unstable dihydropyrimidines of type 2 as intermediates) to 4-methyl- and 4-aryl-6-styryl-2-pyrimidinamines 3b-j and N²-phen