Enantioselective Synthesis of 3‐Fluorochromanes via Iodine(I)/Iodine(III) Catalysis
作者:Jérôme C. Sarie、Christian Thiehoff、Jessica Neufeld、Constantin G. Daniliuc、Ryan Gilmour
DOI:10.1002/anie.202005181
日期:2020.8.24
bioactive small molecules where it is frequently oxidized at position 3. Motivated by the importance of this position in conferring efficacy, and the prominence of bioisosterism in drug discovery, an iodine(I)/iodine(III) catalysis strategy to access enantioenriched 3‐fluorochromanes is disclosed (up to 7:93 e.r.). In situ generation of ArIF2 enables the direct fluorocyclization of allyl phenyl ethers to generate
苯并二氢吡喃核是生物活性小分子的共有核,在位置 3 上经常被氧化。由于该位置在赋予功效方面的重要性以及生物电子等排性在药物发现中的突出地位,碘 (I)/碘 (III) )公开了获得对映体富集的 3-氟色满的催化策略(高达 7:93 er .)。原位生成 ArIF 2能够直接氟环化烯丙基苯基醚,生成表现出立体电子疏忽效应的新型支架。使用氘代探针进行的机械询问证实了与 II 型inv途径一致的立体特异性过程。