1.Benzalacetone 1,2-propylene glycol ketal was synthesized from benzalacetone and 1,2-propylene glycol in the presence of ptoluene sulphonic acid.

1.以对甲苯磺酸为催化剂,酮与-1,2-二醇反应合成了酮-1,2-二醇缩酮。