Asymmetric Gold(I)‐Catalyzed Tandem Hydroarylation–Nazarov Cyclization: Enantioselective Access to Cyclopentenones
作者:Marta Solas、Samuel Suárez‐Pantiga、Roberto Sanz
DOI:10.1002/anie.202207406
日期:2022.8.26
A new enantioselective version of the Nazarov cyclization is reported. The reaction design uses readily available alkenynones to trigger a gold(I)-catalyzed anti-Michael hydroarylation of the ynone followed by Nazarov cyclization. A chiral gold complex is able to control the absolute stereochemistry of the process. Cyclopenta[c]chromenones, which combine the 2H-chromene and cylopentanone cores, are
报道了纳扎罗夫环化的新对映选择性版本。该反应设计使用容易获得的烯炔酮来触发炔酮的金(I)催化的反迈克尔加氢芳基化,然后进行纳扎罗夫环化。手性金络合物能够控制该过程的绝对立体化学。环戊[ c ]色酮结合了 2 H-色烯和环戊酮核心,合成时具有高产率和ee值。