二氧化碳在钯催化的水中锌参与的还原乌尔曼偶联反应中作为选择剂的新作用。
New role of CO2 as a selective agent in palladium-catalyzed reductive Ullmann coupling with zinc in water.
作者信息
Li Jin-Heng, Xie Ye-Xiang, Yin Du-Lin
机构信息
Institute of Fine Catalysis and Synthesis, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China.
出版信息
J Org Chem. 2003 Dec 12;68(25):9867-9. doi: 10.1021/jo0349835.
PMID:14656128
Abstract
Carbon dioxide was found to promote the palladium-catalyzed zinc-mediated reductive Ullmann coupling of aryl halides. In the presence of carbon dioxide, Pd/C, and zinc, various aromatic halides including less reactive aromatic chlorides were coupled to give the corresponding homocoupling products in good yields.
摘要
已发现二氧化碳可促进钯催化的锌介导的芳基卤化物还原乌尔曼偶联反应。在二氧化碳、钯/碳和锌存在的情况下，各种芳族卤化物，包括活性较低的芳族氯化物，均可发生偶联反应，以良好的产率得到相应的自偶联产物。
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