8-Aminoquinolines are important nitrogen-containing heterocycles widely existing in the natural products, bio-active molecules and agrochemicals. It has been developed as significant bidentate directing groups or as ligand auxiliary in various kinds of organic reactions, especially in the area of C-H bond functionalization. Therefore, the synthesis of such motifs, especially those with substituted quinolines is of great significance. This review focuses on the remote C-H bond functionalizaitons of 8-aminoquinolines on the C(5) position, including the advantages and disadvantages as well as an outlook in this field.

In the presence of catalytic amounts of cesium chloride, using DMF as solvent, sodium (potassium) carboxylates reacted with α-chloroacetates at room temperature or reacted with alkyl bromides (chlorides) at 60 ℃ to give the corresponding (α-alkoxyformacyl)methyl carboxylic esters and carboxylic esters in ＞90% yields. The catalytic mechanism was discussed.

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In the presence of catalytic amount of cesium hydroxide, the hydroselenation of terminal alkynes occurred in N,N-dimethylformamide (DMF) at room temperature under nitrogen atmosphere to afford (E)-1-organseleno-1-alkene in high yields. The reaction mechanism is that selenols reacted with cesium hydroxide to give cesium selenides, which underwent nucleophilic addition to the alkynes to form selenium vinylic anion, hydrolyzed to give product (E)-1-organoselenovinylene and catalyst cesium hydroxide. The method could provide a new and expedient way for the hydroselenation of unactivated alkynes.

In this paper, a novel air-stable triphenylbismuth bisperfluorooctanesulfonate was synthesized by treatment of moisture-sensitive triphenylbismuth dichloride with silver bisperfluorooctanesulfonate in anhydrous CH 2 Cl 2 at room temperature. Its catalytic assessment results show that the reactions of arylamine and epoxide proceed efficiently in the presence of triphenylbismuth bisperfluorooctanesulfonates 1 (5.0 mol%) under solvent-free condition, affording β-amino alcohols in good to excellent yields. The yields of desired products do not reduce obviously after recycling for 4 times of catalyst 1. Hence, a convenient and efficient method for preparation of β-amino alcohols is provided.