Enantioselective Synthesis of Chiral Cyclopent-2-enones by Nickel-Catalyzed Desymmetrization of Malonate Esters
作者:Somnath Narayan Karad、Heena Panchal、Christopher Clarke、William Lewis、Hon Wai Lam
DOI:10.1002/anie.201805578
日期:2018.7.16
enantioselective synthesis of highly functionalized chiral cyclopent-2-enones by the reaction of alkynyl malonate esters with arylboronic acids is described. These desymmetrizing arylative cyclizations are catalyzed by a chiral phosphinooxazoline/nickel complex, and cyclization is enabled by the reversible E/Z isomerization of alkenylnickel species. The general methodology is also applicable to the synthesis of
描述了通过丙二酸炔基酯与芳基硼酸的反应的高官能化手性环戊-2-烯酮的对映选择性合成。通过手性膦基恶唑啉/镍络合物催化这些脱对称芳基环化反应,并且通过烯基镍物质的可逆E / Z异构化作用实现环化反应。通用方法也适用于1,6-二氢吡啶3-3(2H)-one的合成。