<i>C</i>
<sub>2</sub>-Symmetric Chiral Bis(thiazoline) and Bis(oxazoline) Ligands and their Application in the Catalytic Asymmetric Allylic Alkylation
作者:Da-Ming Du、Bin Fu、Qing Xia
DOI:10.1055/s-2004-815917
日期:——
-symmetric bis(thiazoline) ligands with dibenzo[a,c]cycloheptadiene backbone as the substituent on the thiazoline ring were synthesized using the simple reagent phosphorus pentasulfide, and their application in catalytic allylic alkylation was investigated by comparison with the corresponding bis(oxazolines). Palladium-bis(oxazoline) complexes furnished good enantioselectivity (up to 87% ee), while bis(thiazolines)