Unexpected formation of bicyclo[3.2.0]heptane derivatives in the reaction of 2,3,5-trichloro-4,4-ethylenedioxycyclopent-4-en-1-one with alkyl acrylates under the standard conditions for the Heck reaction
摘要
A reaction of 6,8,9-trichloro-1,4-dioxaspiro[4,4]non-8-en-7-one with esters of acrylic acid under conditions of the Heck reaction surprisingly gave products possessing the topology of bicyclo[3.2.0]heptane.