Reactions of aroylisothiocyanates 2a,b with acetylenic ketones 1a-c gave a mixture of thiocyanatoprop-2-en-1-ones 3a-c, (E,Z)-3,3’-thiodi(1-aryl-3-phenylprop-2-en-1-ones) 4a-c, 4-methoxybenzoylthiourea (6), 3-(4-methoxybenzamido)-1,3-diphenylprop-2-en-1-one (7a) and 2-phenylacetamide (8). Treatment of 2a,b with acetylenic esters 1d,e afforded a mixture of (Z,Z)-3,3’-thiodiacrylates 5a,b, the thiourea 6, 3-(2-phenylacetamido)-3-phenylprop-2-enoate (7b) and 8. Reacting 1f with 2a yielded tetrahydropyrimidine derivatives 9 and 6. On the other hand, with 2b yielded 8
