Application of 14080-59-2 ,Some common heterocyclic compound, 14080-59-2, molecular formula is C6H3ClN2S, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.
Examples 308 and 309 Synthesis of 6-bromo-4-chlorothieno[2,3-d]pyrimidine and 6-bromo-2-butyl-4-chlorothieno[2,3-d]pyrimidine n-BuLi (1.6 M in hexane, 1.9 ml, 2.5 mmol) in THF (8 ml) was cooled to -78 C. 4-Chlorothieno[2,3-d]pyrimidine (0.34 g, 2.0 mmol) was dissolved in THF (2 ml) and slowly added to the reaction mixture over 5 minutes. After 20 min, CBr4 (0.73 g, 2.2 mmol) in THF (3 ml) was slowly added to the reaction mixture. The temperature was maintained at -78 C. for 20 minutes and then warmed to room temperature for 2 hours. The mixture was poured into water and extracted with chloroform, dried over sodium sulfate, and concentrated in vacuo. The crude residue was purified by silica gel chromatography (EtOAc/hexane 40:1) to yield two pure compounds a white solid (example 203: 0.13 g, 25% and example 204: 0.16 g, 26%).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,14080-59-2, its application will become more common.
Reference:
Patent; KATHOLIEKE UNIVERSITEIT LEUVEN, K.U.LEUVEN R&D; De Jonghe, Steven; Gao, Ling-Jie; Herdewijn, Piet; Herman, Jean; Jang, Miyeon; Leyssen, Pieter; Louat, Thierry; Neyts, Johan; Pannecouque, Christophe; Vanderhoydonck, Bart; US2013/190297; (2013); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia