- Convenient Synthetic Procedures for 2-Bromofuran and 2,5-Dibromofuran
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Reaction of furan with one or two mol equivalents of bromine in N,N-dimethylformamide gives 2-bromofuran or 2,5-dibromofuran, respectively, in 70percent and 48percent yields.
- Keegstra, M.A.,Klomp, A.J.A.,Brandsma, L.
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p. 3371 - 3374
(2007/10/02)
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- 2,5-Dipicrylfurans
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2,5-Dipicrylfurans of the formula STR1 wherein R1 and R2 vary independently and are select from the gp consisting of H and NO2. Unsubstituted 2,5-dipicrylfuran (R1 = R2 = H) is prepared by reacting a picryl halide with a 2,5-dihalofuran. Unsubstituted 2,5-dipicrylfuran may be nitrated under selected conditions to produce either 2,5-dipicryl-3-nitrofuran (R1 = NO2, R2 = H) or 2,5-dipicryl-3,4-dinitrofuran (R1 = R2 = NO2). The 2,5-dipicrylfurans of this invention are energetic explosives possessing high thermal stability.
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