(1α,4aβ,9aβ)-4a-Acetoxy-9a-chloro-1-methoxy-3-trimethylsiloxy-1,4,4a,9,9a,10-hexahydroanthracene-9,10-dione

The structure of the title compound, (1α,4aβ,9aβ)-9a-chloro-1-methoxy-9,10-dioxo-3-trimethylsiloxy- 1,4,4a,9,9a,10-hexahydro-4a-anthracenyl acetate, C₂₀H₂₃ClO₆Si, was determined in order to ascertain the regiochemistry of the Diels–Alder reaction between acetoxychloronaphthoquinone and a 1,3-dioxybutadiene.

-1