Cascade Reaction by Chemo- and Biocatalytic Approaches to Obtain Chiral Hydroxy Ketones and <i>anti</i>
1,3-Diols
作者:Raffaella Gandolfi、Giorgio Facchetti、Michael S. Christodoulou、Marco Fusè、Fiorella Meneghetti、Isabella Rimoldi
DOI:10.1002/open.201800056
日期:2018.5
biocatalytic cascade approach was applied for the stereoselective synthesis of hydroxy ketones and the corresponding 1,3‐diols. A new class of tridentate N,N,O ligands was used with copper(II) complexes for the asymmetric β‐borylation of α,β‐unsaturated compounds. The complex containing ligand L5 emerged as the best performer, and it gave the organoborane derivatives with good ee values. The corresponding keto–alcohol
化学和生物催化级联方法用于羟基酮和相应的1,3-二醇的立体选择性合成。一类新的三齿N,N,O配体与铜(II)配合物一起用于α,β-不饱和化合物的不对称β-硼化。含有配体L5的配合物表现出最好的表现,它使有机硼烷衍生物具有良好的ee值。相应的酮醇化合物随后被酵母生物还原。生物转化设置与深红酵母允许([R )酮醇和(小号,小号)-diols要与高达99%得到的 ee值和高达99%的 德赞成抗对映体。