Owing to the difficulty in acquiring compounds with combined high energy bandgaps and lower‐lying intramolecular charge‐transfer excited states, the development of ultraviolet (UV) thermally activated delayed fluorescence (TADF) materials is quite challenging. Herein, through interlocking of the diphenylsulfone (PS) acceptor unit of a reported deep‐blue TADF emitter (CZ‐PS) by a dimethylmethylene bridge, CZ‐MPS, a UV‐emissive TADF compound bearing a shallower LUMO energy level and a more rigid structure than those of CZ‐PS is achieved. This represents the first example of a UV‐emissive TADF compound. Organic light‐emitting diode (OLED) using CZ‐MPS as the guest material can emit efficient UV light with emission maximum of 389 nm and maximum total external quantum efficiency (EQEmax) of 9.3%. Note that this EQEmax value is twice as high as the current record EQEmax (4.6%) for UV‐OLEDs. This finding may shed light on the molecular design strategy for high‐performance UV‐OLED materials.

Electrochemical oxidative C–H/S–H cross-coupling has been developed to construct the C–S bond in a highly straightforward and efficient manner.

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A direct electrochemical oxidative cross dehydrogenative coupling reaction between enamines and thiophenols has been demonstrated. This strategy provides an effective, more economical, and environmentally friendly method to construct the C(sp2)‐S bond in the absence of chemical oxidants and transition metal catalysts. A variety of enamines and (hetero)aryl thiols are compatible with this transformation to afford the corresponding vinyl sulfides in moderate to excellent yields under undivided electrolytic cell conditions.