An efficient lanthanide(III)-catalyzed diastereo- and enantioselective Michael addition of 3-substituted benzofuran-2(3H)-ones to 4-oxo-enoates was developed. The desired adducts with contiguous quaternary-tertiary stereocenters were obtained in up to 99% yield with up to >95/5 dr and 98% ee.

A convenient and efficient protocol for the synthesis of 6-alkyl phenanthridines and 1-alkyl isoquinolines has been developed. The reaction relies on the coupling of 2-isocyanobiphenyls and vinyl isonitriles with alkyl radicals formed by the silver-catalyzed decarboxylation of stoichiometric aliphatic carboxylic acids, and affords diverse phenanthridine and isoquinoline derivatives under mild reaction conditions. The experiment of β-scission of cyclobutylcarbinyl radicals is used to shed light on the reaction mechanism.

A lightweight, flexible, and highly efficient energy management strategy is highly desirable for flexible electronic devices to meet a rapidly growing demand. Herein, Ni–Co–S nanosheet array is successfully deposited on graphene foam (Ni–Co–S/GF) by a one‐step electrochemical method. The Ni–Co–S/GF composed of Ni–Co–S nanosheet array which is vertically aligned to GF and provides a large interfacial area for redox reactions with optimum interstitials facilitates the ions diffusion. The Ni–Co–S/GF electrodes have high specific capacitance values of 2918 and 2364 F g−1 at current densities of 1 and 20 A g−1, respectively. Using such hierarchical Ni–Co–S/GF as the cathode, a flexible asymmetric supercapacitor (ASC) is further fabricated with polypyrrple(PPy)/GF as the anode. The flexible asymmetric supercapacitors have maximum operation potential window of 1.65 V, and energy densities of 79.3 and 37.7 Wh kg−1 when the power densities are 825.0 and 16100 W kg−1, respectively. It's worth nothing that the ASC cells have robust flexibility with performance well maintained when the devices were bent to different angles from 180° to 15° at a duration of 5 min. The efficient electrochemical deposition method of Ni–Co–S with a preferred orientation of nanosheet arrays is applicable for the flexible energy storage devices.

An N,N′‐dioxide/scandium(III) complex catalyzed, highly efficient conjugate addition of malonic esters to enynes is described. A range of trisubstituted 1,2‐allenyl ketones were obtained in high yields (up to 99 %) with good d.r. (up to 95/5) and excellent ee values (97 %–99 %). Moreover, the products could be easily transformed into chiral furan and 5‐hydroxypyrazoline derivatives, both of which are important skeletons of many biologically active compounds and pharmacologicals.

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Artificial photosynthetic systems store solar energy in chemical fuels via CO2 reduction or renewable hydrogen from water splitting. But only relatively moderate CO2-reducing solar-to-fuel efficiency (ηSTF

Scale could be inhibited by adding polymer inhibitors. In this article, water-soluble polymer, AA–TPEO, was synthesized successfully, which was characterized by FT-IR and 1H NMR. Its stability was studied and its molecular weight was measured using gel permeation chromatography. Through the static scale-inhibition method, the effect of several parameters on the inhibition efficiency of CaCO3, such as composition and dose, molecular weight, pH, temperature, and ion concentration of solution, was investigated. It was found that when the molar ratio was 1:2 (TPEO/AA), the inhibition efficiency could reach 89%, better than common inhibitors. The appropriate molecular weight (Mw) was 17158 g/mol. The supersaturation had been studied, which had a great influence on scale-inhibition efficiency. Meanwhile, the effect of the polymer’s composition and dose on the inhibition efficiency toward Ca3(PO4)2 was investigated. The best molar ratio was 3:1 (TPEO/AA). At last, the polymer’s effectiveness on scale crystal was assessed using XRD.

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