N-Fluoro-(3,5-di-tert-butyl-4-methoxy)benzenesulfonimide (NFBSI): A sterically demanding electrophilic fluorinating reagent for enantioselective fluorination
作者:Hiroyuki Yasui、Takeshi Yamamoto、Takehisa Ishimaru、Takeo Fukuzumi、Etsuko Tokunaga、Kakehi Akikazu、Motoo Shiro、Norio Shibata
DOI:10.1016/j.jfluchem.2011.01.005
日期:2011.3
We disclose here a novel electrophilic fluorinating reagent, N-fluoro-(3,5-di-tert-butyl-4-methoxy)benzenesulfonimide (NFBSI) as a sterically demanding analogue of popular fluorinating reagent, N-fluorobenzenesulfonmide (NFSI). NFBSI improves the enantioselectivity of the products as much as 18% for the cinchona alkaloid-catalyzed enantioselective fluorination of silylenol ether compared to the use
我们在此公开了一种新颖的亲电氟化试剂,N-氟-(3,5-二叔丁基-4-甲氧基)苯磺酰亚胺(NFBSI),作为流行的氟化试剂,N-氟苯磺酰胺(NFSI)的空间需求类似物。与使用NFSI相比,NFBSI对金鸡纳生物碱催化的甲硅烷基醚的对映选择性氟化将产物的对映选择性提高了18%。