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Acid catalyzed cyclodimerization of 2,2-bis(trifluoromethyl)-4-alkoxy-oxetanes and -thietanes. Synthesis of 2,2,6,6-tetrakis(trifluoromethyl)-4,8-dialkoxy-1,5-dioxocanes and 3,3,7,7-tetrakis(trifluoromethyl)-9-oxa-2,6-dithia-bicyclo[3.3.1]nonane
Treatment of 2,2-bis(trifluoromethyl)-4-R-oxetanes (R = C(2)H(5)O, n-C(3)H(7)O, n-C(4)H(9)O) with BF(3)·OEt(2) in CH(2)Cl(2) solvent results in spontaneous electrophilic [4 + 4] cyclodimerization with the formation of the corresponding 2,2,6,6-tetrakis(trifluoromethyl)-4,8-dialkoxy-1,5-dioxocanes, i...
| Autores principales: | , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
Beilstein-Institut
2010
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2887279/ https://www.ncbi.nlm.nih.gov/pubmed/20563273 http://dx.doi.org/10.3762/bjoc.6.46 |