Enantioselective monofluoromethylation of aldehydes with 2-fluoro-1,3-benzodithiole-1,1,3,3-tetraoxide catalyzed by a bifunctional cinchona alkaloid-derived thiourea–titanium complex
作者:Hai Ma、Kohei Matsuzaki、Yu-Dong Yang、Etsuko Tokunaga、Daisuke Nakane、Tomohiro Ozawa、Hideki Masuda、Norio Shibata
DOI:10.1039/c3cc46544f
日期:——
A catalytic enantioselective monofluoromethylation of aldehydes using 2-fluoro-1,3-benzodithiole-1,1,3,3-tetraoxide (FBDT) was realized. With a bifunctional thiourea-titanium catalytic system, the monofluoromethylated-adducts were obtained in good yields and high enantioselectivities, up to 96% ee.
实现了使用2-氟-1,3-苯并二硫-1,1,3,3-四氧化物(FBDT)催化醛的对映选择性单氟甲基化反应。使用双功能硫脲-钛催化系统,单氟甲基化加合物的收率和对映选择性高,最高可达ee的96%。