Unsymmetrical triazolyl-naphthyridinyl-pyridine bridged highly active copper complexes supported on reduced graphene oxide and their application in water
作者:Wenkang Hu、Yilin Zhang、Haiyan Zhu、Dongdong Ye、Dawei Wang
DOI:10.1039/c9gc02086a
日期:——
A novel unsymmetrical triazolyl-naphthyridinyl-pyridine ligand was designed and synthesized, and employed in the synthesis of a heterogeneous copper complex on reduced graphene oxide. The resulting copper composite was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray spectroscopy (EDX). This
abundant and sustainable alcohols as the alkylating reagents, a new and direct alkylation method has been demonstrated. This method enables the selective alkylation of the less substituted pyridyl ring at the β-site of aryl-1,8-naphthyridines, affording the desired products in moderate to excellent yields upon isolation. The method proceeds under transition-metal-free conditions in an atom- and step-economic
Luminescent Properties of Ruthenium(II) Complexes with Sterically Expansive Ligands Bound to DNA Defects
作者:Anna J. McConnell、Mi Hee Lim、Eric D. Olmon、Hang Song、Elizabeth E. Dervan、Jacqueline K. Barton
DOI:10.1021/ic3019524
日期:2012.11.19
[Rh(bpy)2(chrysi)]3+ (chrysi = chrysene-5,6-quinone diimine), and the light switch behavior of [Ru(bpy)2(dppz)]2+ (dppz = dipyrido[3,2-a:2′,3′-c]phenazine). In one approach, complexes bearing analogues of chrysi incorporating hydrogen-bonding functionality similar to dppz were synthesized. While the complexes show luminescence only at low temperatures (77 K), competition experiments with [Ru(bpy)2(dppz)]2+
simplicity, a readily available catalyst system, excellent functional group tolerance, and exclusive regioselectivity, which offers a significant basis to access novel aniline derivatives that are currently inaccessible or challenging to prepare with conventional approaches, and design new coupling reactions via a hydrogen transfer strategy.