6-dihydropyrimidine-2-thiolates with 2-bromo-1-(4-bromophenyl)ethan-1-one afforded 2-[2-(4-bromophenyl)-2-oxoethyl]sulfanyl}pyrimidin-4(3H)-ones. Analogous reaction with sodium 4-trifluoromethyl-6-oxo-1,6-dihydropyrimidine-2-thiolate gave a mixture of 2-[2-(4-bromophenyl)-2-oxoethyl]sulfanyl}-4-(trifluoromethyl)pyrimidin-4(3H)-one and its intramolecular cyclization product, 3-(4-bromophenyl)-3-hydroxy-7-trifluoromethyl-2
用2-
溴-1-(4-
溴苯基)乙-1-酮将4(5)-烷基-6-氧代-1,6-二氢
嘧啶-2-
硫醇
钠烷基化,得到2-[2-(4-
溴苯基)-2-氧代乙基]
硫烷基}
嘧啶-4(3 H)-ones。与4-三
氟甲基-6-氧代-1,6-二氢
嘧啶-2-
硫醇
钠的类似反应,得到2-[2-(4-
溴苯基)-2-氧代乙基]
硫烷基} -4-(三
氟甲基)
嘧啶的混合物-4(3 H)-one及其分子内环化产物3-(4-
溴苯基)-3-羟基-7-三
氟甲基-2,3-二氢[1,3]
噻唑并[3,2- a ]-
嘧啶-5-一个