Synthesis and characterization of 1-chloro-3-methylenecyclopropene
β Scribed by Vladislav A. Litosh; Rajesh K. Saini; Andrew D. Daniels; W.E. Billups
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- French
- Weight
- 155 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
1-Chloro-3-methylenecyclopropene was prepared by vacuum gas-solid elimination of 2,2-dichloro-1-methylene-3-(trimethylsilyl)cyclopropane over solid cesium fluoride and characterized by 1H and 13C NMR spectroscopy at -103 Β°C.
π SIMILAR VOLUMES
The elimination of trimethylsilylbromide from either cis or trans-l-methylene-2-bromo-3trimethylsilylcyclopropane over solid cesium fluoride using the vacuum gas-solid reaction procedure yields methylenecyclopropene.
It has been demonstrated that 7,7-dichlorobicyclo[4.l.O]hept-3-enes are excellent precursors to benzocyclopropenes. l-4 We report here an application of this method to the synthesis of the functionalized benzocyclopropenes 1 and 2, potential precursors to cyclopropabenzynes 3 and 4.