Some reactions of diazomethane with polyfluoroazaolefins |
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Authors: | PL Coe AG Holton |
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Institution: | Chemistry Department, The University of Birmingham, P.O. Box 363 Birmingham B15 2TT Great Britain |
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Abstract: | The reactons of some polyfluoroazaolefins with diazomethane are described. Thus 5-H-decafluoro-2-aza-hex-2-(Z)-ene yields 1-trifluoro-methyl-2-fluoro-2-(1,1,2,3,3,3-hexafluoropropyl)-aziridine as the sole isolable product. However, undecafluoro-2-azahex-2(Z)-ene yields not only the corresponding aziridine, 1-trifluoromethyl-2-fluoro-2-(heptafluoropropyl) aziridine, but also 1-trifluoromethyl-5-(heptafluoropropyl)-1,2,3-triazole, and 1-trifluoromethyl-2-fluoromethyl-2-(heptafluoropropyl) aziridine. 5-H-octafluoro-2-azahexa-2(Z)4(Z)-diene yielded the expected aziridine and 1-trifluoromethyl-2-fluoromethyl-2-(1,1,3,3,-tetra-fluoroprop-2-enyl)aziridine. No products were observed as a result of reactions at the C = C bond and no triazole was isolated in this case. Nonafluoroazacyclohex-1-ene gave the corresponding aziridine and a small amount of a compound believed to be 2,2,3,3,4,4,5,5-octafluoro-1,8,9-triazabicyclo 4,3,0] nonadiene i.e. the triazole product. |
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