Ratiometric fluorescent probe with AIE characteristics for hypochlorite detection and biological imaging.

It is very important and highly valuable to detect ClO in samples and living cells with accuracy and speed. In this work, a novel fluorescent probe NA was prepared from 4-bromo-1,8-naphthalic anhydride by acylation reaction and Suzuki coupling reaction and used for the detection of ClO. Thiomethyl serves as the recognition group for probe NA, while naphthalimide serves as fluorescent chromophore.

Synthesis and application of hypochlorite ratiometric fluorescence probe based on cellulose.

Cellulose is the most abundant natural polymer with good biocompatibility and easy modification characteristics. In this paper, a novel cellulose fluorescence probe CNS for detecting ClO was prepared by modifying microcrystalline cellulose (MCC). The fluorescence detection results indicate that CNS exhibits a highly specific "ratiometric" and "colorimetric" fluorescence response to ClO.

Boiling water resistant fully bio-based adhesive made from maleated chitosan and glucose with excellent performance.

Biomass resources are widely considered potential alternatives to formaldehyde-based wood adhesives because of their abundance. In this study, an environmentally friendly biomass adhesive, carboxylated chitosan-glucose (CSC-G), was prepared using chitosan, maleic anhydride, and glucose. The structure and water resistance of the adhesive were analyzed in detail.

Synthesis of biomass hyperbranched polyamide resin from cellulose and citric acid for wood adhesive.

Traditional wood adhesives have the problems of excessive dependence on fossil resources and environmental pollution. Cellulose, a renewable biomass resource with a low price and huge output, provides a basis for preparing biomass wood adhesives. In this study, a new type of polyamide resin was prepared by modifying microcrystalline cellulose and reacting with natural citric acid.

Synthesis of corn bract cellulose-based Au fluorescent probe and its application in composite membranes.

To achieve real-time monitoring of Au, a corn bract cellulose-based fluorescent probe MAC-1 for was synthesized. MAC-1 showed good fluorescence properties in DMF-HO (1:9, v/v, pH = 7.4) solution, showed a fluorescence emission peak at 520 nm with quenching fluorescence properties for Au.

Regioselective intramolecular cyclization of -alkynyl arylamines with the formation of ArXCl to construct poly-functionalized 3-selenylindoles.

In this article, a practical and metal-free method for the synthesis of poly-functionalized 3-selenyl/sulfenyl/telluriumindoles from -alkynyl arylamines has been achieved. In this protocol, the formation of selenenyl chloride, sulfenyl chloride or tellurenyl chloride is considered as the key intermediate and the 3-selenyl/sulfenyl/telluriumindoles can be obtained in good to excellent yields. Furthermore, the product 2-phenyl-3-(phenylselanyl)-1-tosyl-1-indole can be selectively oxidized to compounds 2-phenyl-3-(phenylseleninyl)-1-tosyl-1-indole and 2-phenyl-3-(phenylselenonyl)-1-tosyl-1-indole in good yields.

Copper-catalyzed construction of ()-benzo[]indoles: stereoselective intramolecular -addition and S-Ar reaction.

Substituted benzo[]indoles are one of the most attractive frameworks because of their wide range of biological and optical activities. Herein, a copper-catalyzed one-step synthesis of biologically important polysubstituted benzo[]indoles starting from 8-alkynyl-1-naphthylamine derivatives is reported. In this protocol, many substituents tolerated the reaction conditions and produced ()-benzo[]indoles in good yields.

Palladium-Catalyzed Preparation of -Substituted Benz[,]indol-2-imines and -Substituted Amino-1-naphthylamides.

Here, we report a novel and facile protocol for the synthesis of benz[,]indol-2-imines palladium-catalyzed C-C and C-N coupling of 8-halo-1-naphthylamines with isocyanides in a single step. The reaction features broad substrate scopes and mild conditions, providing an efficient alternative for the construction of antiproliferative agents and BET bromodomain inhibitors. If 0.