Metal-Catalyzed Syntheses of Abridged CDE Rings of Rubriflordilactones A and B
摘要:
The development of complementary palladium- and cobalt-catalyzed approaches to tricyclic arylsilanes suitable for elaboration into the CDE ring systems of rubriflordilactones A and B is reported. Microwave conditions are required to effect a cobalt-catalyzed triyne cyclotrimerization, which critically depends on the substitution pattern of the triyne termini. Mild conditions to elaborate these arylsilanes to the CDE cores of the natural products are described.
Metal-Catalyzed Syntheses of Abridged CDE Rings of Rubriflordilactones A and B
作者:Shermin S. Goh、Hannah Baars、Birgit Gockel、Edward A. Anderson
DOI:10.1021/ol303041j
日期:2012.12.21
The development of complementary palladium- and cobalt-catalyzed approaches to tricyclic arylsilanes suitable for elaboration into the CDE ring systems of rubriflordilactones A and B is reported. Microwave conditions are required to effect a cobalt-catalyzed triyne cyclotrimerization, which critically depends on the substitution pattern of the triyne termini. Mild conditions to elaborate these arylsilanes to the CDE cores of the natural products are described.