Base‐Promoted Synthesis of β‐Ketophosphine Oxides from Diphenylphosphorylallenes
ASIAN JOURNAL OF ORGANIC CHEMISTRY(2018)
Abstract
The transition-metal-free synthesis of beta-ketophosphine oxides from diphenylphosphorylallenes in the presence of pyrrolidine and silica gel has been developed under mild reaction conditions. This simple and efficient transformation tolerates a wide range of diphenylphosphorylallenes with different functional groups, and affords the desired products in moderate to excellent yields.
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Key words
allenes,base catalysis,beta-ketophosphine oxides,synthetic methods
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