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作 者:Feng He Liting Hou Xianqing Wu Haojie Ding Jingping Qu Yifeng Chen
出 处:《CCS Chemistry》2023年第2期341-349,共9页中国化学会会刊(英文)
基 金:supported by National Natural Science Foundation of China(grant no.22171079);the Natural Science Foundation of Shanghai(grant no.21ZR1480400);the Shanghai Rising-Star Program(grant no.20QA1402300);the Shanghai Municipal Science and Technology Major Project(grant no.2018SHZDZX03);the Program of Introducing Talents of Discipline to Universities(grant no.B16017);the Fundamental Research Funds for the Central Universities and the China Postdoctoral Science Foundation(grant no.2021M701197).
摘 要:The facile construction of chiral quaternaryα-alkenylated pyrrolidinones is a long-term challenge in organic synthesis.The asymmetric difunctionalization of 1,3-dienes represents the most compelling tool for assembling alkenylated compounds by regioselective 1,2-or 1,4-difunctionalization.Nevertheless,the manipulation of unactivated 1,3-dienes to forge the quarternary stereogenic center still remains largely underdeveloped.Herein,we disclose a nickelcatalyzed asymmetric 1,4-arylcarbamoylation of unactivated 1,3-dienes tethered on carbamoyl fluoride with readily available arylboronic acids,providing rapid access to the enantioenrichedα-alkenylated pyrrolidinones bearing the quaternary stereogenic center in high yields with broad functional group tolerance.Moreover,this chiral ligand-controlled asymmetric transformation overcomes the intrinsic substrate control with a preexisting chiral center.
关 键 词:LACTAM NICKEL 1 3-diene enantioselective dicarbofunctionalization quaternary stereogenic center
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