SU192776A1 - METHOD OF OBTAINING 1-NITRO-1,1-DIFTORALCANON-2 - Google Patents
METHOD OF OBTAINING 1-NITRO-1,1-DIFTORALCANON-2Info
- Publication number
- SU192776A1 SU192776A1 SU1046034A SU1046034A SU192776A1 SU 192776 A1 SU192776 A1 SU 192776A1 SU 1046034 A SU1046034 A SU 1046034A SU 1046034 A SU1046034 A SU 1046034A SU 192776 A1 SU192776 A1 SU 192776A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- nitro
- diftoralcanon
- obtaining
- ether
- sodium
- Prior art date
Links
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 11
- 229910052708 sodium Inorganic materials 0.000 description 5
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 2
- LYGJENNIWJXYER-UHFFFAOYSA-N Nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- LCGLNKUTAGEVQW-UHFFFAOYSA-N dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 125000004436 sodium atoms Chemical group 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Description
Изобретение относитс к области получени полупродуктов дл органического синтеза.The invention relates to the field of producing intermediates for organic synthesis.
Предложеи способ получени 1-ннтро-1,1дифторалкапонов-2 путем взаимодействи |3-нитротетрафторэтилиитрита с натриевой аци-солыо нитрометана или натриймалоновым эфиром.The proposed method for the preparation of 1-ntro-1,1 difluoroalcapon-2 by reacting 3-nitrotetrafluoroethylitrile with sodium aci-soly nitromethane or sodium methyl ether.
Пример. К суспензии натриймалонового эфира, полученного из 0,1 г атом натри и 0,1 г моль малопового эфира, в 50 мл абсолютного серного эфира при перемешивании и охлаждении лед ной водой прибавл ют по капл м 0,1 моль р-иитротетрафторэтилнптрита с такой скоростью, чтобы температура не поднималась выше 15°С. Реакциоиную смесь выдерживают при комнатной температуре 12 час. Затем осадок отфильтровывают, а фильтрат фракционируют. Получено 7,5 s (27%) 2-нитро-2,2-дифторацетомалонового эфира - бесцветной жидкости с т. кии. 56-59°С/1 мм.Example. To a suspension of sodium malonic ether, prepared from 0.1 g of a sodium atom and 0.1 g mol of low-ester ether, 50 ml of absolute sulfuric ether are added dropwise with stirring and cooling with ice water 0.1 mol of p-nitrotetrafluoroethylnptrite at such a rate so that the temperature does not rise above 15 ° C. The reaction mixture is kept at room temperature for 12 hours. Then the precipitate is filtered off and the filtrate is fractionated. 7.5 s (27%) of 2-nitro-2,2-difluoroacetomalonic ether — a colorless liquid with a cue — was obtained. 56-59 ° C / 1 mm.
Найдено, %:Found%:
F 12,21; N 4,78. F 12.21; N 4.78.
C.,H4O7NF2.C., H4O7NF2.
Вычислено, % : F 13,42; N 4,95.Calculated,%: F 13.42; N 4.95.
Семикарбозон 2-нитро-2,2-дифтррацетомало )ювого эфира, т. нл. 178°С.Semicarbosone 2-nitro-2,2-diphthyrracetomelo) Yuvogo ether, t. Nl. 178 ° C.
Пайдено, %: F 10,05; N 16,21.Paydeno,%: F 10.05; N 16.21.
CioHuOyN F..CioHuOyN F ..
Вычислено, %: F 11,17; N 16,47.Calculated,%: F 11.17; N 16.47.
А 1алогичнэ получению 2-нитро-2,2-дифторацетомалонового эфира получен 1,3-днннтро1 ,1-дифторацетон с выходом 31% с т. кип. 48-50°С/60 мм.1,3-danntro1, 1-difluoroacetone was obtained with a yield of 31% with m.p. 48-50 ° C / 60 mm.
Пайдено, %: F 19,85; N 14,96.Paydeno,%: F 19.85; N 14.96.
CsHoOsN.F-j.CsHoOsN.F-j.
Вычислено, %.Calculated%
F 20,62; N 15,20.F 20.62; N 15.20.
Семнкарбазон Semcarbazone
1,3-динитро-1,1 -днфтор ацетона , т. пл. 182°С.1,3-dinitro-1,1-dnfluoroacetone, t. Pl. 182 ° C.
Пайдено, %: F 16,07; N 31,67.Paydeno,%: F 16.07; N 31.67.
5five
C,H,0,N,F,.C, H, 0, N, F ,.
Вычислено, %: F 17,27; N 31,82.Calculated,%: F 17.27; N 31.82.
Предмет изобретени Subject invention
Снособ получени 1-нитро-1,1-дифторалка0 понов-2, отличающийс тем, что (З-нитротетрафторэтилннтрит подвергают взаимодействию с натриевыми производиыми питрометаиа или малопового эфира.A method for the preparation of 1-nitro-1,1-difluoroalkon pon-2, characterized in that (3-nitrotetrafluoroethylnitrite is reacted with sodium-derived pitrometaia or low-ester ether.
Publications (1)
Publication Number | Publication Date |
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SU192776A1 true SU192776A1 (en) |
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