Efficient Access to α-Substituted β-Keto Phosphonates via NHC-Catalyzed Dehaloacylation of α-Bromo Phosphonates

Key Points

• To develop a general method for synthesizing α-substituted β-keto phosphonates through NHC-catalyzed reactions.
• Utilized NHC-catalyzed dehaloacylation of α-bromo phosphonates.
• Employed radical acylation techniques to facilitate product formation.
• Evaluated reaction conditions for efficiency and yield.
• Successfully accessed a range of α-substituted β-keto phosphonates.
• Demonstrated improved yields compared to traditional methods.
• Provided insights into the reaction mechanism underlying the NHC-catalysis.