32498-74-1Relevant articles and documents
Catalytic Enantioselective Synthesis and Switchable Chiroptical Property of Inherently Chiral Macrocycles
Tong, Shuo,Li, Jiang-Tao,Liang, Dong-Dong,Zhang, Yan-E,Feng, Qi-Yun,Zhang, Xin,Zhu, Jieping,Wang, Mei-Xiang
supporting information, p. 14432 - 14436 (2020/10/13)
We report herein a strategy to construct enantiopure inherently chiral macrocycles, ABCD-type heteracalix[4]aromatics, through a catalytic enantioselective intramolecular C-N bond forming reaction. A chiral ligand-palladium complex was found to efficiently induce the inherent chirality of molecules during the macrocyclization process with ee values up to >99%. The resulting ABCD-type heteracalix[4]aromatics displayed excellent and pH-triggered switchable electronic circular dichroism and circularly polarized luminescence properties.