SU185873A1 - METHOD OF OBTAINING DIOXIDE BUTADIENE - Google Patents
METHOD OF OBTAINING DIOXIDE BUTADIENEInfo
- Publication number
- SU185873A1 SU185873A1 SU1019568A SU1019568A SU185873A1 SU 185873 A1 SU185873 A1 SU 185873A1 SU 1019568 A SU1019568 A SU 1019568A SU 1019568 A SU1019568 A SU 1019568A SU 185873 A1 SU185873 A1 SU 185873A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- butadiene
- dioxide
- obtaining
- obtaining dioxide
- solvent
- Prior art date
Links
- KAKZBPTYRLMSJV-UHFFFAOYSA-N butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 title 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- ZFIVKAOQEXOYFY-UHFFFAOYSA-N butadiene bisoxide Chemical compound C1OC1C1OC1 ZFIVKAOQEXOYFY-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- IAMUIOPHQNABER-UHFFFAOYSA-N 2,3-dichlorobutane-1,1-diol Chemical compound CC(Cl)C(Cl)C(O)O IAMUIOPHQNABER-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000005695 dehalogenation reaction Methods 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- GXBYFVGCMPJVJX-UHFFFAOYSA-N epoxybutene Chemical compound C=CC1CO1 GXBYFVGCMPJVJX-UHFFFAOYSA-N 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Description
Известен способ получени диокиси бутадиена путем обработки щелочью 1,4-дихлорбутандионола-2 ,3 в водпой среде.A known method for the preparation of butadiene dioxide by treatment with alkali of 1,4-dichlorobutanediol-2, 3 in aqueous medium.
Чтобы расширить сырьевую базу, предлагаетс в качестве исходного сырь использовать 2,3-дигалоидбутандиол-1,4.To expand the raw material base, it is proposed to use 2,3-dihalo-butanediol-1,4 as a starting material.
Пример 1. 53,7 г 2,3-дибромбутандиола-1 ,4 (т. пл. 87-88°С), полученного бромированием 22 г бутен-2-дпола-1,4 в дпоксане, раствор ют в 400 мл диэтилового эфира и прибавл ют порци ми при перемешивании 32 г едкого кали . После прекращени кипени растворител жидкость сливают, а осадок промывают эфиром. Объединенные эфирные растворы диокиси бутадиена перегон ют при атмосферном давлении. Получают 13,5 г продукта . Выход 60,1% от теоретического в расчете на бутендиол, т. кип. 64°С, п 1,4342, df 1,1242, MRD 19,95.Example 1. 53.7 g of 2,3-dibromobutanediol-1, 4 (m.p. 87-88 ° C) obtained by brominating 22 g of butene-2-dpola-1.4 in dpoxane are dissolved in 400 ml of diethyl 32 g of potassium hydroxide is added in portions with stirring. After the solvent has boiled, the liquid is drained and the precipitate is washed with ether. The combined ether solutions of butadiene dioxide are distilled at atmospheric pressure. 13.5 g of product are obtained. Output 60.1% of theoretical per butandiol, t. Kip. 64 ° C, n 1.4342, df 1.1242, MRD 19.95.
Пример 2. Сырой 2,3-дихлорбутандиол1 ,4, полученный хлорированием 14,9 г бутен-21 ,4-диола при 0,5°С в диоксане, раствор ют в 100 мл диэтилового эфира и при перемешивании прибавл ют порци ми 20 г КОН. После того как растворитель перестанет кипеть и реакционна смесь охладитс , ее обрабатывают , как описапо выше. Получают 7,8 г днокиси бутадиена (53,6% от теоретического, счита Example 2. A crude 2,3-dichlorobutanediol, 4, obtained by chlorinating 14.9 g of butene 21, 4-diol at 0.5 ° C in dioxane, is dissolved in 100 ml of diethyl ether and added with stirring in portions of 20 g KON. After the solvent has ceased to boil and the reaction mixture has cooled, it is treated as described above. 7.8 g of butadiene monoxide are obtained (53.6% of the theoretical value,
на бутендиол).on butandiol).
Предмет изобретени Subject invention
Способ получени диокиси бутадиена путемThe method of producing butadiene dioxide by
щелочного дегалоидировани дигалоидбутапдиола в среде растворител с последуюшимalkaline dehalogenation of dihalobutadiol in the medium of a solvent followed by
выделением конечного продукта перегонкой,the selection of the final product by distillation,
отличающийс тем, что, с целью расширени characterized in that, in order to expand
сырьевой базы, в качестве исходного сырь raw material base as feedstock
используют 2,3-дигалоидбутандиол-1,4.2,3-dihalo-butanediol-1,4 is used.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU185873A1 true SU185873A1 (en) |
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