Synthesis of tetrahydroanthracen-9-ones by the domino aldol condensation/Diels–Alder cycloaddition
作者:Meng-Yang Chang、Ming-Hao Wu
DOI:10.1016/j.tetlet.2012.04.053
日期:2012.6
substituted 2-allylbenzaldehydes 2 was described. The overall synthetic process was carried out by the domino aldol condensation/Diels–Alder cycloaddition of skeleton 2 with substituted cinnamaldehydes 3 in an alkalic aqueous-methanolic solution followed by base-induced double migration of the resulting cycloadducts. Skeleton 2 was prepared from isovanillin (4) in moderate yield in five-steps via the known