- Iridium-Catalyzed Direct Cyclization of Aromatic Amines with Diols
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We developed an environmentally friendly iridium-catalyzed direct cyclization of aromatic amines with diols that generates the corresponding N-heterocyclic compounds with water as the sole by-product. Thus, under conditions of 165 °C for 18 hours, the direct cyclization of N -methylanilines with 1,3-propanediol by using an IrCl 3 catalyst with rac -BINAP as a ligand in mesitylene afforded the corresponding tetrahydroquinoline derivatives with yields ranging from 73 to 83%. Under similar reaction conditions, direct cyclization of anilines with 1,3-propanediol produced the corresponding tetrahydrobenzoquinolizine derivatives with yields ranging from 26 to 76%.
- Minakawa, Maki,Watanabe, Kouichi,Toyoda, Satoru,Uozumi, Yasuhiro
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supporting information
p. 2385 - 2389
(2018/11/23)
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- High power organic cathodes using thin films of electropolymerized benzidine polymers
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Thin films of benzidine polymers were electrochemically deposited directly onto conductive substrates by oxidative coupling of di- and trianilinoalkane monomers. The electropolymerization and electrochemical properties of the polymers were optimized by varying the alkyl linker. Polymer films exhibited two reversible one-electron transfers at high potentials (>3.3 V vs. Li/Li+) and maintained discharge capacities in excess of 150 mA h g-1 even when discharged in under 4 seconds.
- Truong, Thanh-Tam,Coates, Geoffrey W.,Abru?a, Héctor D.
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supporting information
p. 14674 - 14677
(2015/09/28)
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