79963-45-4Relevant academic research and scientific papers
Preparation of (Z)-α-chloro-α,β-unsaturated ketones with total or high diastereoselectivity
Concellón, José M,Huerta, Mónica
, p. 7775 - 7780 (2007/10/03)
(Z)-α-Chloroenones are obtained by reaction of α-chloro-β-hydroxyketones with acetic anhydride, pyridine and 4-dimethylaminopyridine with total or high diastereoselectivity and in high yield.
The Acid-catalyzed Decomposition of α-Diazo β-Hydroxy Ketones
Miyauchi, Kazuo,Hori, Kimiaki,Hirai, Tsuguji,Takebayashi, Matsuji,Ibata, Toshikazu
, p. 2142 - 2146 (2007/10/02)
The proton acid-catalyzed decomposition of 3-aryl-2-diazo-3-hydroxy-1-phenylpropanone (1) gave aryl and hydrogen migration products.The former was the enol-form (2) of 2-aryl-3-phenyl-1,3-propanedione and the latter was the enol- (3) and keto-form (4) of 1-aryl-3-phenyl-1,3-propanedione.The product ratios, 2/(3+4), were affected by the catalysts and solvents used.More polar solvents favored the formation of aryl migration products (2).On the other hand, the BF3-catalyzed decomposition of 1 gave acetylenic ketones as main products along with 2, 3, 4.The TsOH-catalyzed decomposition of 2-diazo-3-hydroxy-3-phenyl-1-indanone, (cyclic α-diazo β-hydroxy ketone), gave 2-phenyl-1,3-indandione quantitatively through phenyl migration.
