Dibenzothiophene-bis(oxazolines): new sulfur-containing ligands tested in asymmetric palladium-catalyzed allylic substitutions
作者:Arnaud Voituriez、Jean-Claude Fiaud、Emmanuelle Schulz
DOI:10.1016/s0040-4039(02)00962-0
日期:2002.7
New asymmetric sulfur-containing ligands based on a dibenzothiophene backbone have been prepared. The chirality was introduced by two oxazoline moieties placed near the sulfur atom. These C2-symmetric bis(oxazolines) have been successfully tested in asymmetric palladium-catalyzed allylic substitutions leading to up to 77% e.e.
已经制备了基于二苯并噻吩主链的新的不对称含硫配体。手性是由位于硫原子附近的两个恶唑啉部分引入的。这些C 2对称双(恶唑啉)已在不对称钯催化的烯丙基取代中成功进行了测试,可产生高达77%的ee