作者:Cheng-yi Chen、Mark Weisel
DOI:10.1055/s-0032-1317704
日期:——
The asymmetric synthesis of three natural products: (+)-conocarpan, both (+)- and (–)- obtusafuran is disclosed. The highlights of the synthesis are the enantioselective hydrogenation of prochiral ketones via dynamic kinetic resolution to afford chiral alcohols. Intramolecular ring closure via either SNAr reaction or metal-catalyzed C–O bond formation led to the construction of the trans-dihydrobenzofuran
公开了三种天然产物的不对称合成:(+)-conocarpan,(+)-和(-)- obtusafuran。合成的亮点是通过动态动力学拆分对前手性酮进行对映选择性氢化以提供手性醇。通过 SNAr 反应或金属催化的 C-O 键形成的分子内闭环导致反式二氢苯并呋喃核的构建。