40052-87-7Relevant academic research and scientific papers
Synthesis of chromones via palladium-catalyzed ligand-free cyclocarbonylation of o-iodophenols with terminal acetylenes in phosphonium salt ionic liquids
Yang, Qian,Alper, Howard
, p. 948 - 950 (2010)
(Chemical Equation Presented) The highly efficient and selective palladium-catalyzed ligand-free cyclocarbonylation reaction of o-iodophenols with terminal acetylenes and CO in the phosphonium salt ionic liquid,C 14H29(C6H13)3P +Br-, affords diversified chromones in good to excellent yields under atmospheric CO pressure. The ionic liquid, as the reactionmedium, enhances the efficiency of the cyclocarbonylation reaction.
