electronic properties. A guanidine molecule of this library with an incorporated 2,6-diisoaniline fragment was identified as a suitable promoter for the enantioselective fluorination of 1,3-dicarbonyl and α-cyano carbonyl compounds to furnish the fluorinated product with up to 84 % ee and 99 % yield using N-fluorobenzenesulfonimide (NFSI) as the fluorinating agent.
具有
酒石酸骨架的新型手性
胍库具有可调节的空间和电子特性,可轻松访问。该文库中掺入2,6-二异
苯胺片段的
胍分子被鉴定为1,3-二羰基和α-
氰基羰基化合物的对映选择性
氟化的合适
促进剂,可为
氟化产物提供84%ee和99使用N-
氟苯磺
酰亚胺(
NFSI)作为
氟化剂的收率(%)。