Quinone → Endo-1,4a,8,8a-tetrahydro-1,4-ethanonaphthalene-5,8-dione

Participants

Reaction Steps

A solution of 40 g of 1,4-benzoquinone and 35 mL of 1,3-cyclohexadiene in 90 mL of benzene was stirred in a closed vessel for 3 days at rt. The reaction mixture was concentrated and the residue was crystallized in EtOH to obtain 57 g of the desired compound as mixture of stereoisomers as greenish solid.

Provenance & Evidence