Dobner miller reaction of 3,4,5-Trimethoxyaniline with acrolein was explored in order to afford new quinoline. Acrolein was prepared by heating glicerol. Potassium hydrogen sulfate and potassium sulfate at 215-230 0 C for three hours in 15% yield. Reaction of 3,4,5-Trimethoxyaniline with acrolein gave six products, three of them have been purifield and identifield as 5,6,7-Trimethoxyquinoline (27%); 5,6,7-Trimethoxy-1,2,3,4-Tetrahydroquinoline (43%); and 8,9,10-Trimethoxy-2,3,6,7-Tetrahydro-1H, 5H-pyrido [3,2,1-ij]quinoline (30%)