Ni(II)/trisoxazoline-catalyzed asymmetric sulfa-Michael/Aldol cascade reaction is introduced to access chiral 3-amine-tetrahydrothiophene derivatives containing a quaternary stereocenter (32 examples, up to 93% yield, > 20:1 dr and 92% ee). Moreover, the novel strategy offers an efficient and convenient approach to construct chiral thionucleoside analogues.
引入通常有用的Ni(II)/三
恶唑啉催化的不对称
磺胺-Michael / Aldol级联反应以访问含有季立体中心的手性3-胺-
四氢噻吩衍
生物(32个实例,最高收率93%,> 20:1 dr和92%ee)。此外,该新颖策略提供了构建手性
硫代核苷类似物的有效且方便的方法。