Ag. Moglioni et al., SYNTHESIS AND STUDY OF REACTIVITY IN THE DIELS-ALDER REACTION OF 3-METHOXYCARBONYLINDENO[1,2-6]PYRAN-2(5H)-ONES, Journal of chemical research. Synopses, (11), 1996, pp. 500-501
A process for the attainment of 3-carboxyindeno[1,2-b]pyran-2(5H)-ones
and their conversion into 2-methoxycarbonyl fluorenes, based on the i
nverse-electron-demand Diels-Alder reaction of substituted 3-methoxyca
rbonyl-2-pyrones, is described.