prop-2-ynyl hexa-2,4-dienoate

(E)-5-phenyl-penta-2-ene-4-yne-1-ol

2-methylidene-4-phenylbut-3-yn-1-ol

5-bromomethyl-1-phenyl-1H-[1,2,3]triazole

4-(bromomethyl)-1-phenyltriazole