developed by simply optimizing the amount of cosolvent, and up to 15 g L–1 1-Me DHIQ was converted completely without a feeding strategy. Furthermore, the reaction proceeded well for a panel of dihydroisoquinolines, affording the corresponding tetrahydroisoquinolines (mostly in S-configuration) in good yields (up to 81%) and with moderate to excellent enantioselectivities (up to 99% ee).
鉴定出一种新的来自烟粉虱(Stack Stackerbrandtia nassauensis)(Sn IR)的
亚胺还原酶,与其他报道的
亚胺还原酶相比,该酶对
1-甲基-3,4-二氢异喹啉(1-Me DHIQ)的催化效率提高了25到1400倍。随后,通过简单地优化助溶剂的量,开发了一种有效的Sn IR催化工艺,无需进料策略即可完全转化多达15 g L –1 1-Me DHIQ。此外,对于一组二氢
异喹啉,反应进行得很好,以高收率(高达81%)和中等至优异的对映选择性(高达99%ee)提供了相应的
四氢异喹啉(大部分呈S-构型)。