2D nanofluidic systems are endowed with photo-responsive ionic rectification by asymmetric modification with spiropyran. Structural and photo-induced charge heterostructures result in smart 2D ionic rectifiers with a maximum rectification ratio of 48.

We report herein the development of a Co(III)-catalyzed enaminone-directed C-H amidation method for synthetic access to quinolones, an important heterocyclic scaffold for diverse pharmaceutically active structures. The C-H coupling with dioxazolones and subsequent deacylation of an installed amide group allow consecutive C-N coupling generation of quinolones with wide-ranging compatible substituent patterns.

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