Abstract
The total stereoselective synthesis of (Z)‐rubrenoic I (1a), (Z)‐nor‐rubrenoic I (17a), (E)‐rubrenoic III (3b), and nor‐(E)‐rubrenoic III (30b) acids was achieved using Suzuki and Stille cross‐coupling reactions from readily available starting materials.
Acknowledgment
We gratefully acknowledge support for this project from Consejo del Sistema Nacional de Educación Tecnológica (COSNET) 491‐02‐P (2002) and a graduate fellowship from Consejo Nacional de Ciencia y Tecnología (CONACyT) for L. G. S.