Photoswitchable Chiral Cation-Binding Catalyst: Photocontrol of Catalytic Activity on Enantioselective Aminal Synthesis
作者:Chandu G. Krishnan、Masaru Kondo、Kento Nakamura、Hiroaki Sasai、Shinobu Takizawa
DOI:10.1021/acs.orglett.2c00741
日期:2022.4.15
Design of a suitable photoswitchable chiral cation-binding cage for the synthesis of optically active aminals was established using the azobenzene-BINOL hybrid oligoethylene glycol (ABOEG) through E/Z isomerization of the azobenzene unit. Under photoirradiation, both the catalyticactivity and enantioselectivity of the generating (Z)-ABOEG are enhanced, in contrast to that of (E)-ABOEG, which can be
使用偶氮苯-BINOL杂化低聚乙二醇(ABOEG)通过偶氮苯单元的E / Z异构化,设计了一种合适的光可切换手性阳离子结合笼,用于合成光学活性缩醛胺。与 ( E )-ABOEG 相比,在光辐照下,生成 ( Z )-ABOEG 的催化活性和对映选择性均增强,这可归因于金属阳离子和低聚乙二醇之间几何上不同的配位行为。