A simple route for the synthesis of 1,3-diketones by the reaction of acetylenic ketones with amines followed by hydrolysis of the resulting aminovinylketons is suggested.
Novel 2-pyrone synthesis via the nucleophilic addition of active methine compounds to 2-alkynone
作者:Iwao Hachiya、Hitoshi Shibuya、Makoto Shimizu
DOI:10.1016/s0040-4039(03)00211-9
日期:2003.3
Novel 2-pyrone synthesis via the nucleophilic addition of activemethinecompounds to 2-alkynone has been developed. The reaction of activemethinecompounds with 2-alkynone provided 2-pyrones in good yields.
Photocycloaddition of Enynones (4-Acylbut-1-en-3-ynes) to Alkenes
作者:Inga Inhülsen、Paul Margaretha
DOI:10.1021/ol902827s
日期:2010.2.19
The title compounds undergo regio- and diastereoselective [2+2]-cycloaddition at the olefinic C-C bond on irradiation (350 nm) in the presence of either methacrylonitrile or 2,3-dimethylbuta-1,3-diene, affording hitherto unknown 1-cyclobutylalk-1-yn-3-ones or 1-bicyclo[4.2.0]octylalk-1-yn-3-ones, respectively.
A new route for the synthesis of 1,3-diketones
作者:A. S. Zanina、S. I. Shergina、I. E. Sokolov、R. N. Myasnikova
DOI:10.1007/bf00698504
日期:1995.4
A simple route for the synthesis of 1,3-diketones by the reaction of acetylenic ketones with amines followed by hydrolysis of the resulting aminovinylketons is suggested.
Non‐Diazo C−H Insertion Approach to Cyclobutanones through Oxidative Gold Catalysis
Cyclobutanones are synthetically versatile compounds that often require extensive effort to access. Herein, we report a facile synthesis of cyclobutanones based on the C(sp3)−H insertion chemistry of oxidatively generated gold carbenes. Various cyclobutanones were obtained in syntheticallyuseful yields from substrates with minimal structural prefunctionalization. This discovery reveals new synthetic utilities