G. Sartori et al., SELECTIVE SYNTHESIS OF 1-INDANONES VIA TANDEM KNOEVENAGEL CONDENSATION-CYCLOALKYLATION OF BETA-DICARBONYL COMPOUNDS AND ALDEHYDES, Tetrahedron, 51(44), 1995, pp. 12179-12192
Aromatic 1,3-dicarbonyl compounds react with not enolizable aldehydes
in the presence of C2H5MgBr or AlCl3 affording 2-carbethoxy- and 2-ace
tyl-1-indanones via tandem Knoevenagel condensation-cycloalkylation pr
ocess.