Gold(I)‐Catalyzed Enantioselective Desymmetrization of 1,3‐Diols through Intramolecular Hydroalkoxylation of Allenes
作者:Weiwei Zi、F. Dean Toste
DOI:10.1002/anie.201508331
日期:2015.11.23
A gold(I)‐catalyzed enantioselective desymmetrization of 1,3‐diols was achieved by intramolecular hydroalkoxylation of allenes. The catalyst system 3‐F‐dppe(AuCl)2 /(R)‐C8‐TRIPAg proved to be specifically efficient to promote the desymmetrizing cyclization of 2‐aryl‐1,3‐diols, which have proven challenging substrates in previous reports. Multisubstituted tetrahydrofurans were prepared in good yield
通过丙二烯的分子内加氢烷氧基化实现了金 (I) 催化的 1,3-二醇的对映选择性去对称化。催化剂体系 3-F-dppe(AuCl) 2 /( R )-C 8 -TRIPAg 被证明对于促进 2-芳基-1,3-二醇的去对称环化特别有效,这在之前的报告中已被证明是具有挑战性的底物。该方法以良好的收率制备了多取代四氢呋喃,具有良好的对映选择性和非对映选择性。