作者:Fehmi Damkaci、Cihad Sigindere、Thomas Sobiech、Erik Vik、Joshua Malone
DOI:10.1016/j.tetlet.2017.07.099
日期:2017.9
modified Ullmann coupling reactions creating C–O bonds, including diaryl ethers or phenols, are vital to organic synthesis. Synthesized N-phenyl-2-pyridinecarboxamide and its derivatives were used as ligands in conjunction with catalytic copper sources in the formation of various diaryl ethers and phenols. Various aryl and heteroaryl halides with electron donating and withdrawing groups were reacted with
铜催化的修饰的Ullmann偶联反应产生C–O键,包括二芳基醚或苯酚,对有机合成至关重要。合成的N-苯基-2-吡啶甲酰胺及其衍生物在形成各种二芳基醚和酚的过程中,与催化性铜源一起用作配体。在温和的反应条件下,将各种具有供电子和吸电子基团的芳基和杂芳基卤化物与各种苯酚反应,可提供中等至极好的收率。