摘要 报道了使用二芳基碘鎓盐方便且有效的铜催化的芳基硫脲的S-芳基化。在作为催化剂的CuCl和作为碱的K 2 CO 3的存在下,以高收率合成了所需的芳基异硫脲,并且可以耐受芳基硫脲和二芳基碘鎓盐上的多种官能团。该协议提供了一些潜在有用的生物和药物化合物的替代合成方法。 报道了使用二芳基碘鎓盐方便且有效的铜催化的芳基硫脲的S-芳基化。在作为催化剂的CuCl和作为碱的K 2 CO 3的存在下,以高收率合成了所需的芳基异硫脲,并且可以耐受芳基硫脲和二芳基碘鎓盐上的多种官能团。该协议提供了一些潜在有用的生物和药物化合物的替代合成方法。
An environmentally benign, simple and highly efficient protocol for the synthesis of S-arylisothiourea derivatives has been achieved in good to excellent yields by reacting a series of aryliodides with arylthioureas, using inexpensive CuSO4·5H2O as catalyst in water without PTC (phase transfer catalyst). The protocol features easy performance, good to excellent yields, good tolerance towards a variety
A convenient and efficient protocol has been developed for the preparation of aryl-isothioureas based on the Chan-Lam C-S couplingreaction. The desired aryl-isothioureas were synthesized in good yields (up to 95%) in the presence of Cu(OAc)(2)H2O as catalyst and bipyridine as ligand. A variety of functional groups on the aryl-thiourea and arylboronic acid reagents are tolerated. The method features
Copper-Catalyzed C–S Cross-Coupling Reaction: S-Arylation of Arylthioureas
作者:Hui Zhu、Xing Liu、Cai-Zhu Chang、Zhi-Bing Dong
DOI:10.1055/s-0036-1590879
日期:2017.12
Abstract A simple and efficient copper-catalyzed S-arylation of arylthioureas was developed. Arylthioureas were smoothly converted into aryl-isothioureas with good yield by copper-catalyzed S-arylation. The features of this method include the use of a ligand-free catalyst, good yield, short reaction time, and broad substrate scope. The method provides a facile and convenient preparation of some potentially