537686-98-9Relevant articles and documents
New Benzo[b]xanthones from Diels-Alder Reactions of Chromone-3- carboxaldehydes with ortho-Benzoquinodimethanes
Sandulache, Angela,Silva, Artur M. S.,Cavaleiro, Jose A. S.
, p. 551 - 563 (2003)
New benzo[b]xanthone derivatives, having substituents in the A and D rings, were prepared from cycloaddition reactions of chromone-3-carboxaldehydes with ortho-benzoquinodimethanes, generated in situ from 1,3-dihydrobenzo[c]thiophene 2,2-dioxide, followed