作者:P. Kurian Oommen
DOI:10.1246/bcsj.49.1985
日期:1976.7
acid hydrolysis yielded the tetralone IIIa and the latter was carboxymethylated to IIIb by reaction with dimethyl carbonate and sodium hydride. Michael condensation of IIIb with methyl vinyl ketone yielded the unsaturated ketone IV. The tricyclic ketone IV on methylation followed by thioketalisation gave the thioketal IXa and the latter on Raney nickel desulfurisation yielded Ic.
2,7-二甲氧基-3-异丙基萘 (IIb) 本身由 IIa 分五步进行 Birch 还原,然后酸水解得到四氢萘酮 IIIa,后者通过与碳酸二甲酯和氢化钠反应羧甲基化为 IIIb . IIIb与甲基乙烯基酮的迈克尔缩合产生不饱和酮IV。甲基化后的三环酮 IV 得到硫缩酮 IXa,而后者在 Raney 镍脱硫中得到 Ic。