91084-99-0Relevant articles and documents
SYNTHESIS OF dl-PENTALENOLACTONES E AND F.
Cane,Thomas
, p. 5295 - 5303 (1984)
The methyl esters of ( plus or minus )-pentalenolactone E and F have been synthesized by a route based on the intramolecular insertion of an alpha -acylcarbene into an unactivated C-H bond to effect closure of the key fused delta -lactone ring system. Lactone reduction, deketalization, and selective acetalization of the derived lactol provided as a mixture of epimers.