Efficient Synthesis of 2-Mono- and 2,5-Disubstituted Furans via the CuI-Catalyzed Cycloisomerization of Alkynyl Ketones
作者:Alexander V. Kel'i、Vladimir Gevorgyan
DOI:10.1021/jo010832v
日期:2002.1.1
A mild, general, and efficient method for the synthesis of 2-monosubstituted and 2,5-disubstitutedfurans via the CuI-catalyzed cycloisomerization of alkynyl ketones was developed. It was demonstrated that furans containing both acid- and base-labile groups could be easily synthesized using this methodology. A plausible mechanism for this transformation is proposed.
Asymmetric Transfer Hydrogenation of Functionalized Acetylenic Ketones
作者:Zhijia Fang、Martin Wills
DOI:10.1021/jo401284c
日期:2013.9.6
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 were achieved.
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