Naturally occurring dibenzofurans. Part7. The synthesis of ψ-rhodomyrtoxin
作者:Christopher F. Carvalho、Melvyn V. Sargent
DOI:10.1039/p19840002573
日期:——
The synthesis of 1,1′-(1,3,7,9-tetrahydroxy-2,8-dimethyldibenzofuran-4,6-diyl)-2,3′-dimethylbisbutan-1-one (ψ-rhodomyrtoxin)(2) is described. Intramolecular Ullmann reaction of bis(2-iodo-3,5-dimethoxy-4-methylphenyl) ether (8) yielded 1,3,7,9-tetramethoxy-2,8-dimethyldibenzofuran (9) which was converted, in subsequent steps, into the natural product.
1,1'-(1,3,7,9-四羟基-2,8-二甲基二苯并呋喃-4,6-二基)-2,3'-二甲基双丁烷-1-酮(ψ-横霉毒素)(2)的合成描述。双(2-碘-3,5-二甲氧基-4-甲基苯基)醚(8)的分子内Ullmann反应产生1,3,7,9-四甲氧基-2,8-二甲基二苯并呋喃(9),在随后的步骤中将其转化,变成天然产物。