Multicomponent Oxidative Trifluoromethylation of Alkynes with Photoredox Catalysis: Synthesis of α-Trifluoromethyl Ketones
作者:Yashwardhan R. Malpani、Bishyajit Kumar Biswas、Hong Sik Han、Young-Sik Jung、Soo Bong Han
DOI:10.1021/acs.orglett.8b00410
日期:2018.4.6
oxidative addition of CF3 and H2O to alkynes was achieved with photoredox catalysis to obtain α-trifluoromethyl ketones via rapid enol-keto tautomerization. The reaction exhibits high functional group tolerance and regioselectivity. Heterocycles of various sizes containing CF3 were synthesized from the α-CF3-substituted diketones obtained through the protocol, thereby demonstrating the versatile applicability
将CF 3和H 2 O直接氧化成炔烃是通过光氧化还原催化,通过快速的烯醇-酮互变异构反应获得α-三氟甲基酮。该反应表现出高的官能团耐受性和区域选择性。含CF各种尺寸的杂环3是从α-CF合成3个通过协议获得的,从而证实了该方法的适用性多功能-取代的二酮。与同位素反应的机理研究提供了对反应途径的深入了解。