107675-04-7Relevant articles and documents
Photochemical Reactions of α,β-Unsaturated γ,δ-Epoxy Ketones and Nitriles in the Presence of Amine
Ishii, Keitaro,Gong, Dan,Asai, Ryo,Sakamoto, Masanori
, p. 855 - 861 (2007/10/02)
Direct irradiation (λ 254 nm) of the α,β-unsaturated γ,δ-epoxy ketone (1) and nitrile (2) in acetonitrile in the presence of aliphatic amines gave the divinyl ethers (5) and (11), respectively, as the main products, whose formation was shown to depend on solvent polarity and ionization potential of amines.On the other hand, when compounds (1) and (2) were irradiated in various alcohols in the presence of an amine they afforded the corresponding ketals (14)-(19) and (21) in 85-21percent yield.Photochemical reactions of ketone (3) and nitrile (4) in methanol, were also studied.
Photochemical Reactions. Further Investigation of the Photochemistry of 5,6-Epoxy-5,6-dihydro-β-ionone: Product Formation via a Carbonyl-Ylide Intermediate
O'Sullivan, Anthony,Frei, Bruno,Jeger, Oskar
, p. 555 - 559 (2007/10/02)
On ?,?*-excitation of the epoxyenone (E)-1 (λ = 254 nm, MeCN), in addition to the previously isolated compounds 2-9, the new products 10-12 derived from the ylide intermediate c were isolated.Further evidence for the ylide c was obtained by the rapid racemization of the optically active epoxyenone (-)-(E)-1.
