Studies on Reactions of Pyrimidine Compounds. 2<sup>1</sup>. Microwave-Assisted Synthesis of 1,2,3,4-Tetrahydro-2- Thioxopyrimidine Derivatives
作者:Esvet Akbaş、Furgan Aslanoğlu
DOI:10.1080/10426500701557021
日期:2007.12.24
cyclocondensation reaction of a β -diketone, arylaldehyde, and thiourea under microwave irradiation. Thiazolopyrimidine ( 2 ), ( 3 ) and pyrimido[2,3-b]thiazine ( 4 ) derivatives were obtained by a simple one-pot condensation reaction of starting compound 1b and 2-bromopropionic acid, bromoacetic acid and 3-bromopropionic acid, respectively. These reactions performed under microwave irradiation and conventional
5-苯甲酰基-4,6-二苯基-1,2,3,4-四氢-2-硫代嘧啶 (1a) 和 5-苯甲酰基-4-(2-氯苯基)-6-苯基-1,2,3,在微波辐射下,使用 β-二酮、芳醛和硫脲的 Biginelli 三组分环缩合反应合成了 4-四氢-2-硫代嘧啶 (1b)。通过起始化合物1b与2-溴丙酸、溴乙酸和3-溴丙酸的简单一锅缩合反应得到噻唑并嘧啶(2)、(3)和嘧啶并[2,3-b]噻嗪(4)衍生物,分别。这些反应在微波辐射和常规条件下进行。该研究提出了一种简单有效的制备 1,2,3,4-四氢-2-硫代嘧啶及其衍生物的途径。