γ,δ-unsaturated β-diketones by acylation of ketones
γ,δ-Unsaturated β-diketones have been prepared by the acylation of ketones with N-acylbenzotriazoles of various aliphatic and aromatic α,β-unsaturated carboxylic acids.
Katritzky, Alan R.,Meher, Nabin K.,Singh, Sandeep K.
Asymmetric transfer hydrogenation of functionalized acetylenic ketones
A systematic study of the asymmetric transfer hydrogenations of functionalized acetylenic ketones and diketones has been completed, together with a total synthesis of (S,S)-(-)-yashabushidiol B. In several cases, excellent enantioselectivities and yields
Fang, Zhijia,Wills, Martin
p. 8594 - 8605
(2013/09/24)
Synthesis and acid- or base-catalyzed cyclization of various 4-pentyne-1,3-dione derivatives
4-Pentyne-1,3-dione derivatives having various substituents were conveniently synthesized from ynals and silyl enol ethers in two steps. The cyclization behaviors of the obtained 4-pentyne-1,3-diones were studied. γ-Pyrones and 3(2H)-furanones were obtain
Kuroda, Hirofumi,Izawa, Hironori
p. 780 - 782
(2007/10/03)
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