Pierre Vogel
The Diels-Alder cyclodimer of 6-vinyl-7-oxabicyclo[2.2. 1]hept-5-en-2-one ((1RS,2SR,3SR,4RS,7RS,11SR, 12RS)-11-vinyl-15,16-dioxapentacyclo[10.2.1.1(4,7).0(2,11).0(3.8)]hexade c-8-ene-6,13-dione: 20) was converted into the corresponding 8,9-endo-epoxide ((1 ...
1999