Abstract
Some substituted pyridazin-6-ones(1-4) and two uracils(10,12) have been converted to the corresponding $N_1$-(2-oxopropyl)pyridazine-6-ones(6-9), 1,3-bis(2-oxopropyl)-5-fluorouracil(11) and 2-(2-oxopropylthio)uracil(13) respectively by reaction with 4-bromoacetoacetic acid. Also, 4,5-dichloro-1-(3-carbomethoxy-2-oxopropyl)pyrida zin-6-one(15) and 4,5-dichloro-3-nitro-1-(3-carbomethoxy-2-oxopropyl)pyridazin-6-one(16) was synthesized from the corresponding pyridazin-6-ones(1,2) and methyl 4-bromoacetoacetate.