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Citation: XUE Si-Jia, GUO Yan-Ling, LI Jing-Zhi. Syntheses of Cinnamoyl Thiourea Derivatives under Ultrasonic Irradiation[J]. Chinese Journal of Applied Chemistry, ;2006, 23(12): 1381-1384. shu

Syntheses of Cinnamoyl Thiourea Derivatives under Ultrasonic Irradiation

1.
Department of Chemistry, Shanghai Normal Unversity, Shanghai 200234

Corresponding author: XUE Si-Jia,
Received Date: 29 December 2005
Available Online: 20 April 2006
Fund Project: 上海市经委2004年重点科技攻关项目(沪创新-J-56)资助项目 (沪创新-J-56)

Ultrasonic waves have been utilized in organic synthesis for their low reaction temperature and simple operation as compared with the conventional heating method.The use of ultrasonic irradiation in the presence of PTC for organic synthesis is well documented.Nine new N'-(4,6-disubstituted pyrimidin-2-yl)-N-cinnamoyl thioureas(4a~4i) were synthesized under ultrasonic irradiation in the presence of PTC.The structures of all the novel target compounds were confirmed by means of IR,¹H NMR and elemental analysis.The ultrasonic-irradiation and phase-transfer catalyst reduced the reaction temperature from 90℃ to 60℃,and the reaction time was shortened by 3 h,while,the reaction yield improved from 49% to 70%.The preliminary biological activity of the target compounds have been tested.
- N'-(disubstituted pyrimidinyl)-N-cinnamoyl thiourea,
- ultrasonic irradiation,
- phase transfer catalysis,
- synthesis
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