Intramolecular Rhodium-Catalyzed [2+2+2] Cyclizations of Diynes with Enones
作者:Amanda L. Jones、John K. Snyder
DOI:10.1021/jo9001678
日期:2009.4.3
The Rh(I)-catalyzed inter- and intramolecular [2+2+2] cyclization of diynes with alpha,beta-unsaturated enones proceeds with microwave promotion in good yields. This chemistry was applied to the synthesis of (-)-alcyopterosin I.
Total Syntheses of the Marine Illudalanes Alcyopterosin I, L, M, N, and C
作者:Tania Welsch、Huu-Anh Tran、Bernhard Witulski
DOI:10.1021/ol102432q
日期:2010.12.17
The combination of a modular assembly of enantiopure triynes and a powerful rhodium-catalyzed [2 + 2 + 2] alkynecyclotrimerization reaction opens new and efficient entries to a set of alcyopterosins, including the first total synthesis of the alcyopterosins L, M, and C.