Synthesis of trans-Fused Oxabicyclo[5.2.0]nonan-2-ones via [2+2] Photocycloaddition of Oxepinones to Conjugated Alkenes
作者:Kerstin Schmidt、Paul Margaretha
DOI:10.1002/hlca.201100009
日期:2011.5
On irradiation (350 nm) in the presence of 2,3‐dimethylbuta‐1,3‐diene, benzoxepinone 2 and dioxepinone 3 were converted regio‐ and diastereoselectively to trans‐fused oxabicyclo[5.2.0]nonanones 5 and 9, respectively.