Solid-Phase Synthesis of Unfunctionalized Arenes Via the Traceless Cleavage of Sulfonate Linkers
作者:Chul-Bae Kim、Chul-Hee Cho、Min-Jy Jo、Kwang-Yong Park
DOI:10.5012/bkcs.2011.32.10.3655
日期:2011.10.20
The hydrogenolysis of polymer-bound arenesulfonates by 2-propylmagnesium chloride was performed through reductive cleavage of the C-S bond in the presence of a nickel catalyst. The reaction underwent in the highest efficiency by adding 15 equiv of the nucleophile in two additions with $dppfNiCl_2$ in THF. Various unfunctionalized naphthalene, biphenyl, and stilbene derivatives were produced in good yields by the traceless sulfonate linker system at room temperature.
通过在镍催化剂存在下,使用氢解聚合物结合的芳烃磺酸盐,采用2-丙基氯化镁实现了C-S键的还原断裂。反应在THF中添加15当量的亲核试剂进行两次加料时实现了最高效率。通过无痕磺酸酯连接体体系,在室温下以良好产率合成了各种未功能化的萘、联苯和苯乙烯衍生物。