Synthesis of cyclobutylideneacetic esters via aluminum chloride promoted [2+2] cycloadditions of ethyl 2,3-butadienoate to olefins
β Scribed by H.M.R. Hoffmann; Zeinhom M. Ismail; Anette Weber
- Book ID
- 104243992
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- French
- Weight
- 249 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Summahg: In the p&esence od AJXC3, eXhgL 2,3-buhxdienaate m.ati uLith a v&&g 06 o.&iti, inc.&d&g n.&np& unaotivated cgcLoaJ?hencb, to give cgclobtigfidencactic Tim at Loom temple. The cg&oaddition 0 hcgiobc&tive and &teheoh&3dive. Cyclobutylideneacetic esters have hitherto attracted little attention, their formation having been mostly incidental in a study of the mechanism of some molecular rearrangements.
π SIMILAR VOLUMES
Efficient Synthesis of 4-Halo-4-penten-2-ones and 3-Halo-3-butenoic Acids/Esters via Hydrohalogenation Reaction of 3,4-Pentadien-2-one and 2,3-Butadienoic Acid/Methyl Ester. -Allenes bearing an electron-withdrawing group react with alkali metal halides and acetic acid to give useful yields of Ξ²,Ξ³-u