作者:M. M. V. Ramana、Prashant V. Potnis
DOI:10.1055/s-1996-4337
日期:1996.9
Cyclohexene-1-acetic acid (1) undergoes reactions with various aromatic substrates 2a-k in the presence of polyphosphoric acid (PPA) to give 1,2,3,4,4a,10a-hexahydrophenanthren-9(10H)-ones 3a-k by tandem acylation-cycloalkylation, which on dehydrogenation with Pd-C afforded the corresponding phenanthrenes 4a-k in high yields.
环己烯-1-乙酸 (1) 在聚磷酸 (PPA) 的存在下与各种芳香基底 2a-k 反应,通过串联酰化-环烷基化生成 1,2,3,4,4a,10a-六氢菲-9(10H)-酮 3a-k,随后在 Pd-C 的脱氢作用下得到相应的菲 4a-k,并获得高产率。