We first report efficient construction of novel tetraphenethylene (TPE)-based macrocycles with various mechanofluorochromism (MFC) behaviors of solid-state molecular motions. The diverse solid-state molecular motion behaviors of the facile 18-33 membered...

A facile inner halogenation of Ag(III) NCP complex1is reported. Treatment of1with 2NHCl and 1NHBr gave2and4, respectively. A demetallized product3was formed as a trace side product when dilute acids were applied and as a predominant product when treated with concentrated acids. The importance of the C3‐ethoxy group for the halogenation reactions was experimentally indicated. Treatment of1with 4NH2SO4gave carbaporpholactam6in good yield. Halide anions are suggested to accelerate the demetallation reaction of1.

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The direct transformation of the C–N bond of amides to yield secondary amides, esters, and thioesters remains a challenge in organic synthesis. Here, we present a simple and efficient approach...

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