136229-46-4Relevant articles and documents
Vinylindenes and Some Heteroanalogues in the Diels-Alder Reaction. IX. 3-Vinylbenzofuran and 1,4-Naphthoquinone
Pearson, James R.,Porter, Quentin N.
, p. 907 - 917 (2007/10/02)
3-Vinylbenzofuran and 1,4-naphthoquinone react to give r-5a,6,c-12a,c,12b-tetrahydroanthrabenzofuran-5,13-quinone.This adduct undergoes ring opening to 2-(2-hydroxyphenyl)anthraquinone with base and oxygen, but shows no rearrangement to anthrabenzofuran-5,13-quinone.