An efficient tandem reaction system was developed, in which primary alcohols were used for the oxidation to the corresponding aldehydes followed by an asymmetric alpha-oxyamination with a resin-supportedpeptidecatalyst.
The resin-supportedpeptidecatalyst having the terminal five-residue Pro-d-Pro-Aib-Trp-Trp combined with polyleucine successfully catalyzed the asymmetric α-oxyamination of aldehydes in aqueous media. The secondary structure and the chirality sense of the hydrophobic polyleucine chain significantly affected both reactivity and enantioselectivity.
具有末端五残基Pro- d -Pro-Aib-Trp-Trp和聚亮氨酸的树脂负载的肽催化剂成功地催化了水性介质中醛的不对称α-氧化胺化。疏水性聚亮氨酸链的二级结构和手性感显着影响反应性和对映选择性。