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https://www.selleckchem.com/products/NVP-TAE684.html Herein, uric acid@Ti3C2 quantum dots (UA@Ti3C2 QDs) were synthesized via a microwave-assisted strategy on the basis of acid etching and stripping. The UA@Ti3C2 QDs have bright blue emission. Intriguingly, the fluorescence emission of the UA@Ti3C2 QDs was significantly quenched after the addition of 2,4,6-trinitrophenol (TNP), due to inner-filter effect (IFE). Based on these findings, a novel environmentally friendly and water-soluble fluorescence probe based on UA@Ti3C2 QDs was demonstrated for the sensitive and selective detection of TNP. The method presented a wide linear range for TNP detection in the 0.01-40 μM range, with a low detection limit of 9.58 nM. Furthermore, the probe was successfully used for the sensitive detection of TNP in real water and smartphone-based colorimetric (SPBC) detection of TNP on surfaces with the linear range from 10.0 to 100.0 ng. On the whole, this work provides an effective strategy for the synthesis of UA@Ti3C2 QDs and an alternative fluorescence probe for detecting TNP both on surface and in solution.Correction for 'Functionalized fluorescent terephthalate monomers and their attempted polyester formation' by Yvonne S. L. Choo et al., Org. Biomol. #link# Chem., 2020, 18, 8735-8745, DOI 10.1039/D0OB01533D.ortho-Quinone methides (o-QMs) generated from the corresponding benzyl acetate precursors chemoselectively underwent the formal [4 + 2]-cycloadditions with the olefin of styrene, stilbene, or cinnamate derivatives by using different transition metal salts or Brønsted acids. Such selectivity was obtained when these olefins either separately acted as the dienophiles or were simultaneously present on the same dienophiles. Complete selectivity was also achieved between the stilbene olefin and acetylene to furnish the key chroman intermediate for the subsequent ring-closing metathesis (RCM), affording the corresponding tetracyclic 5H-dihydronaphtho[1,2-c]chromene.The authors took a

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