Pd(0)-systems modified with SPINOL-derived phosphoramidate ligands promote highly enantioselective aza-Heck cyclizations of alkenyl N-(tosyloxy)carbamates. The method provides versatile access to challenging N-heterocycles and represents the broadest scope enantioselective aza-Heck protocol developed to date.
用
SPINOL 衍生的
氨基
磷酸酯
配体修饰的 Pd(0)-系统促进烯基 N-(
甲苯磺酰氧基)
氨基甲酸酯的高度对映选择性 aza-Heck 环化。该方法提供了对具有挑战性的 N-杂环的通用访问,并代表了迄今为止开发的最广泛的对映选择性 aza-Heck 协议。