Domino products from the reaction of 1,3-diaryl-2-propen-1-ones (chalcones) with cyclopentanone
The simple reaction of chalcones with cyclopentanone in the presence of barium hydroxide furnished complex domino products of the types 4 and 5 along with 1,5-diketones 3. Mechanistic considerations reveal that the bicyclic alcohol 4 was formed by sequent