�ber eine neuartige Synthese von ?-Ketoallenen durch Reaktion von terti�ren Acetylencarbinolen mit Vinyl�thern eine ergiebige methode zur darstellung des Pseudojonons und verwandter verbindungen
作者:G. Saucy、R. Marbet
DOI:10.1002/hlca.19670500423
日期:——
The novel acid-catalysed reaction of isopropenyl ether with tertiary acetylenic carbinols to give β-ketoallenes in high yields is described. Upon treatment with bases, these allenes readily undergo isomerization to conjugated dienones. This reaction sequence results in an economic synthesis of pseudo-ionones and pseudo-irones from dehydrolinalool and its homologs.
Selective Palladium-Catalyzed Allenic C−H Bond Oxidation for the Synthesis of [3]Dendralenes
作者:Youai Qiu、Daniels Posevins、Jan-E. Bäckvall
DOI:10.1002/anie.201706211
日期:2017.10.9
oxidation was developed, and it provides a novel and straightforward synthesis of [3]dendralene derivatives. A variety of [3]dendralenes with diverse substitution patterns are accessible with good efficiency and high stereoselectivity. The reaction tolerates a broad substrate scope containing various functional groups on the allene moiety, including ketone, aldehyde, ester, and phenyl groups. Also, a wide range
Solvent-free synthesis of unsaturated ketones by the Saucy–Marbet reaction using simple ammonium ionic liquid as a catalyst
作者:Congmin Wang、Wenjia Zhao、Haoran Li、Liping Guo
DOI:10.1039/b900042a
日期:——
Saucy–Marbet reactions of unsaturated alcohols with unsaturated ethers to afford the corresponding unsaturatedketones, eliminating the need for volatile organic solvents. The effect of the anions and the cations of ionic liquids, quantity of ionic liquid, temperature, and chain-length of unsaturated alcohols on the reaction was investigated. The results showed that the Saucy–Marbet reaction was heavily