Reaction of 1-aryl-2,2-dibromoalkan-1-ones with zinc and 4-aroyl-1H-benzo[c]oxepin-3-ones
摘要:
Zinc enolates formed from the substituted 1-aryl-2,2-dibromoalkan-1-ones and zinc react with 4-aroyl-1H-benzo[c]oxepin-3-ones to form 1-alkyl-1-aroyl-1a -aroyl-1,1a,4,8b-tetrahydro-3-oxabenzo[a]cyclopropa c]cyclohepten-2-ones.