Superbase-catalyzed addition of ketones to propargyl and allenyl ethers in the KOH (KOBut)/DMSO system
摘要:
Alkyl (het)aryl ketones undergo nucleophilic addition to propargyl or allenyl ethers in the KOH (KOBut/DMSO system at 100 degrees C either at terminal (giving 1:2 adducts) or internal (giving 1:1 adducts) positions of the propargyl or allenyl fragment.