82026-21-9Relevant articles and documents
Ketyl-allene cyclizations promoted by samarium(II) iodide
Molander, Gary A.,Cormier, Elizabeth Pollina
, p. 2622 - 2626 (2007/10/03)
(Chemical Equation Presented) Samarium(II) iodide has proven to be an effective reagent for intramolecular reductive coupling Sreactions. Previous investigations of intramolecular ketyl-olefin coupling reactions provided carbocycles in excellent yield and good diastereoselectivity. This method has been extended to ketyl cyclizations with allenes. Substrates leading to both carbocycles and heterocycles in a selective manner are explored.
Intramolecular Photoaddition of Terminal Allenes to Conjugated Cyclohexenones
Becker, Dan,Harel, Zvi,Nagler, Meshulam,Gillon, Arie
, p. 3297 - 3306 (2007/10/02)
Terminal allenes linked to cyclohexenones by hydrocarbon chains were synthesized and irradiated with UV ligth.It was found that cycloaddition occurs regiospecifically in high yield.The adducts were oxidized by ozone to 1,3-diketones which underwen