作者:J.M. Dewanckele、F. Zutterman、M. Vandewalle
DOI:10.1016/s0040-4020(01)91569-8
日期:1983.1
Two routes towards (±) quadrone (), via an intramolecular Diels-Alder reaction have been studied. The cycloaddition of failed, probably because of prohibitive strain. In the alternative approach, the key step afforded a mixture of the endo- and exo-adducts and . Both isomers were transformed into Danishefsky's intermediate , which has previously been converted to the title compound .
已经研究了通过分子内Diels-Alder反应到达(±)四氢萘酮()的两条途径。环加成反应失败,可能是由于过高的应变。在替代方法中,关键步骤提供了内加合物和外加合物和的混合物。两种异构体均被转化为Danishefsky的中间体,该中间体先前已转化为标题化合物。