Inside-outside stereoisomerism. 6. Synthesis of trans-bicyclo[4.4.1]undecan-11-one and the first stereoselective construction of the tricyclic nucleus of the ring system of the ingenane diterpenes

Article abstract of DOI:10.1021/ja00089a006

The intramolecular dioxenone photocycloaddition reaction provides access to compounds which in many cases cannot be otherwise prepared. The application of this methodology to the construction of trans-bicyclo[4.4.1]undecan-11-one, 16, which is ca. 10 kcal