Efficient Synthesis of (−)-Corynoline by Enantioselective Palladium-Catalyzed α-Arylation with Sterically Hindered Substrates
作者:Xiaofeng Rao、Naikai Li、Heng Bai、Chaodi Dai、Zheng Wang、Wenjun Tang
DOI:10.1002/anie.201807302
日期:2018.9.17
employed in an enantioselective palladium‐catalyzed α‐arylation with the chiral monophosphorus ligand BI‐DIME. This process enabled an efficient synthesis of the antidepressant (S)‐nafenodone, a four‐step enantioselective synthesis of the Sceletium alkaloid (+)‐sceletium A‐4, a concise five‐step enantioselective synthesis of (−)‐corynoline, as well as a three‐step preparation of (−)‐DeN‐corynoline
受阻位的底物可用于手性单磷配体BI-DIME的对映选择性钯催化的α-芳基化反应。此过程可实现抗抑郁药(S)-萘芬酮的高效合成,Sceletium生物碱(+)-Sceletium A-4的四步对映体选择性合成,(-)-corynoline的简明五步对映体选择性合成作为(-)-DeN-corynoline的三步制备方法。