Preparation and characterization of 2,3-dihydro-2,3 bis (methylene) furan
โ Scribed by J. Jullien; J.M. Pechine; F. Perez; J.J. Piade
- Book ID
- 104246322
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- French
- Weight
- 123 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
2,3-dihydro -2,3 bis (methylene) furan and its d-methyl derivative have been prepared by flash vacuum thermolysis and characterized by mass spectrometry and chemical trapping.
๐ SIMILAR VOLUMES
On heating in sulpholane 4,6-dihydrothieno[3,4-blthiophene 5,5-dioxides give 2,3dihydro-2,3-bis(methylene)thiophenes which can be intercepted in Diels-Alder reactions. Sulphur dioxide is a very efficient trap for these thiophene xylylenes giving the cyclic sulphones by cheletropic addition.
A simple and convenient method for the microsynthesis of tritiated 3-methylfuran and trttiated 2-1nethylfuran froa 3furfuryl chloride and 2-furfuryl chloride, respectively, has been described. The tritium label was introduced by reductive dehalogenation with tritiated lithim aluminum hydride.