Sequential Chiral Induction and Regulator‐Assisted Chiral Memory of Pillar[5]arenes. (7th October 2020)

• Record Type: Journal Article
• Authors: Fa, Shixin; Egami, Kouichi; Adachi, Keisuke; Kato, Kenichi; Ogoshi, Tomoki
• Is Part Of: Angewandte Chemie. Volume 132:Number 46(2020)
• Page Start: 20533
• Page End: 20536
• Publication Date: 2020-10-07
• Subjects: chirality -- macrocycles -- memory -- noncovalent interactions -- pillar[n]arenes; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.202010050
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Chirality transfer is widely observed in life processes, and many artificial chiral transfer systems have been developed. In these systems, chiral information is transferred from chiral inducers to chiral acceptors by a direct chiral induction process and a direct chiral memorization process. We have developed ternary nondirect chiral transfer systems based on pillar[5]arenes, in which a third factor was introduced as a regulator. The planar chirality of an acceptor was induced and memorized by a chiral inducer with precise control by a regulator. In the chiral induction period, the feed sequence of the chiral inducer and regulator affected the chiral induction behavior of the chiral acceptor. The chiral memory ability of the acceptor was substantially improved by the combined action of the chiral inducer and regulator. Abstract : Ternary nondirect chiral transfer systems based on pillar[5]arenes are reported in which a third factor was introduced as a regulator. The planar chirality of an acceptor was induced and memorized by a chiral inducer with precise control by a regulator. The chiral memory ability of the acceptor was substantially improved by the combined action of the chiral inducer and regulator.