54743-42-9Relevant articles and documents
Photochemical Synthesis of 4-Oxobutanal Acetals and of 2-Hydroxycyclobutanone Ketals
Manfrotto, Cristina,Mella, Mariella,Freccero, Mauro,Fagnoni, Maurizio,Albini, Angelo
, p. 5024 - 5028 (2007/10/03)
Irradiation of α,β-unsaturated ketones (aliphatic, both open chain and cyclic as well as aryl substituted) in 1,3-dioxolane in the presence of a sensitizer (benzophenone or anthraquinone) led to 4-oxobutanal acetals in fair to excellent yield through a very simple procedure (workup in most cases by bulb-to-bulb distillation). The resulting acetals were irradiated to give 2-hydroxycyclobutanone ketals, again through a simple procedure that gave a good yield with open-chain aliphatic derivatives.
A NEW READY ROUTE TO 1,4-KETOALDEHYDES AND 1,4-DIKETONES WITH APPLICATION TO THE SYNTHESIS OF Z-JASMONE AND DIHYDROJASMONE
Fiandanese, V.,Marchese, G.,Naso, F.
, p. 3587 - 3590 (2007/10/02)
A new three-step synthesis in good overall yield of 1,4-ketoaldehydes and 1,4-diketones is described.The method involves two sequential coupling reaction of reagents with S-phenyl carbonochloridothioate in the presence of nickel(II) or iron(III) complexes as catalysts.Application of this reaction to the synthesis of Z-jasmone and dihydrojasmone is also described.