Synthesis of Cordiaquinones B, C, J, and K on the Basis of a Bioinspired Approach and the Revision of the Relative Stereochemistry of Cordiaquinone C
作者:Elias Arkoudis、Manolis Stratakis
DOI:10.1021/jo800355y
日期:2008.6.1
cordiaquinone family (cordiaquinones B, C, J, and K) were synthesized on the basis of a bioinspired scenario in five to six steps from trans,trans-farnesol. As key reactions we used the acid-catalyzed cyclization of a suitable epoxy terpenoid and a Diels−Alder reaction between a diene and benzoquinone. The relative stereochemistry of cordiaquinone C is opposite to that reported in the isolation paper and
根据生物启发方案,从反式,反式-法呢醇分五到六步合成了四氢醌醌家族的四个成员(二甲醌B,C,J和K)。作为关键反应,我们使用了合适的环氧萜类化合物的酸催化环化反应以及二烯与苯醌之间的Diels-Alder反应。Cordiaquinone C的相对立体化学与隔离纸中报道的相反,并且与从常见的(E)构型萘醌环氧化物前体生物合成Cordiaquinones的可行方案相吻合。还报道了一种快速,清洁的方法,用于从顺式-nerolidol合成天然存在的(Z)-β-法呢烯。