First total synthesis of the brominated polyacetylenes (+)-diplyne A and D: proof of absolute configuration
作者:Benjamin W. Gung、Craig Gibeau、Amanda Jones
DOI:10.1016/j.tetasy.2004.11.010
日期:2004.12
The first total syntheses of the enantiomers of two novel brominated polyacetylenic natural products, diplynes A and D, are reported. The syntheses are based on Pd and Cu(I)-catalyzed coupling reactions. The stereocenter was derived from D-mannitol. The stereocenter in the naturally occurring (−)-diplyne A was established to have an (R)-configuration.
报道了两种新型溴化聚炔自然产物对二烯基A和D的对映异构体的首次全部合成。合成是基于Pd和Cu(I)催化的偶联反应。立体中心衍生自D-甘露醇。天然存在的(-)-双丙炔A中的立体中心被建立为具有(R)-构型。