A Convenient Preparative Method for New 1,3‐Bis(hetaryl)‐2‐chloropropen‐1‐ones Using β‐Alkoxy‐α‐chloroalkenyllithium Compounds

Abstract

The 1,3-biaryl and 1,3-bis(hetaryl)propen-1-ones 14a-e, 16, 17a-c, 19, 20a and the corresponding acetals 15a-d, 18a and 21a-d were successfully synthesized by a stepwise process: the reaction of α-chloro-β-ethoxyethenyllithium compounds and aldehydes and ketones, and the successive hydration