An efficient three-component synthesis of 3-(1-hydroxy-alkyl)[1,2,4]triazolo[4,3-c]quinazolines is described. A mixture of N-isocyaniminotriphenylphosphorane, an aldehyde, and a 4(3H)-quinazolinone undergo a 1:1:1 addition reaction in refluxing THF to afford the title compounds in good to excellent yields.