SU125800A1 - The method of producing acetate v1v - dimethylallyl alcohol - Google Patents

The method of producing acetate v1v - dimethylallyl alcohol

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Publication number
SU125800A1
SU125800A1 SU624596A SU624596A SU125800A1 SU 125800 A1 SU125800 A1 SU 125800A1 SU 624596 A SU624596 A SU 624596A SU 624596 A SU624596 A SU 624596A SU 125800 A1 SU125800 A1 SU 125800A1
Authority
SU
USSR - Soviet Union
Prior art keywords
acetate
dimethylallyl alcohol
producing acetate
dimethylallyl
producing
Prior art date
Application number
SU624596A
Other languages
Russian (ru)
Inventor
В.И. Аносов
М.А. Миропольская
М.А. Миропольска
А.Н. Нашатырев
А.П. Савостин
Г.И. Самохвалов
Н.И. Федотова
Original Assignee
В.И. Аносов
М.А. Миропольская
М.А. Миропольска
А.Н. Нашатырев
А.П. Савостин
Г.И. Самохвалов
Н.И. Федотова
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by В.И. Аносов, М.А. Миропольская, М.А. Миропольска, А.Н. Нашатырев, А.П. Савостин, Г.И. Самохвалов, Н.И. Федотова filed Critical В.И. Аносов
Priority to SU624596A priority Critical patent/SU125800A1/en
Application granted granted Critical
Publication of SU125800A1 publication Critical patent/SU125800A1/en

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Description

Известный способ ползчени  ацетата ,7-ди1мети,та.ллилового спи)та состоит в гидратации изоцрена в зксусиокислой среде. Описываемый способ получени  ацетата 7 Т-Диметилаллилового спирта из диметилметадиоксана ,  вл ющегос  промежуточным продуктом в производстве изопрена, действием на него уксусной кнслоты или ее ангидрида в присутствии серной кислоты, упрощает схему процесса.A known method of creeping acetate, 7-di-1-meth, th.d.-lilar spi is to hydrate iso-crene in an acidic medium. The described method for producing 7-T-dimethylallyl alcohol acetate from dimethyl methadioxane, which is an intermediate in the production of isoprene, by the action of acetic acid or its anhydride on it in the presence of sulfuric acid, simplifies the process.

Предлагаемый способ получени  ацетата 7.7 -диметилаллилового сннрта заключаетс  в том, что диметилметадиоксан подвергают действию уксусной кислоты или ее ангидрида в присутствии серной кислоты в течение 10-14 час. При этом получают диацетат, который нагревают с известным катализатором в каталитической печи или реакторе до 180- -220°, и ацетат т/( -диметилаллилового спирта.The proposed method for the preparation of 7.7-dimethylallyl acetate acetate is that dimethyl methadioxane is exposed to acetic acid or its anhydride in the presence of sulfuric acid for 10-14 hours. You get a diacetate, which is heated with a known catalyst in a catalytic furnace or reactor to 180-220 °, and acetate t / (-dimethylallyl alcohol.

Пример. К 116,2 вес. ч. 4,4-днметилметадиоксана прибавл ют смесь 107,6 вес. ч. 97%-цого уксусного ангидрида и 0,37 вес. ч. серной кислоты (уд. вес 1,84) в течение 30 мин.; при этом температура реакционной с.меси поднимаетс  до 45°. Через 12 час. указанную смесь нагревают в течение 1 часа до 100, перегон ют и получают 182 вес. ч. диацетата в виде жидкости с т. кип. 103-105° и /г -1,4318; 23 вес. ч. полученногоExample. K 116,2 weight. including 4,4-dimethyl methadioxane, a mixture of 107.6 wt. including 97% acetic anhydride and 0.37 wt. including sulfuric acid (beats weight 1.84) for 30 minutes; while the temperature of the reaction mixture rises to 45 °. 12 hours later this mixture is heated to 100 hours for 1 hour, distilled, and 182 wt. including diacetate in the form of a liquid with t. Kip. 103-105 ° and / g -1.4318; 23 wt. h received

продукта нагревают над 1,5 вес. ч. катализатора, известного дл  производства изопрена, до температуры 180-220° с отгонкой продуктов расщеплени .product is heated over 1.5 wt. including catalyst, known for the production of isoprene, to a temperature of 180-220 ° C with the removal of fission products.

Дистилл т отфильтровывают от параформа, промывают насыщенным раствором поташа, сущат сульфатом натри , пepefoн ют и получают 10,1 вес. ч. ацетата 7 Т-Диметилаллилового спирта в виде жидкости с характерным запахом с т. кип. 146-154° и п - 1,4220.The distillate is filtered off from paraform, washed with a saturated solution of potash, dissolved in sodium sulfate, dissolved, and 10.1 weight is obtained. including acetate 7 T-dimethylallyl alcohol in the form of a liquid with a characteristic odor with t. Kip. 146-154 ° and p - 1.4220.

л 125800- 2 -l 125800-2 -

Предмет изобретени Subject invention

Способ получени  ацетата (Л-Диметилаллилового спирта, отличающийс  тем, что, с целью упрощени  процесса, диметилметадиоксан обрабатывают уксусной кислотой или ее ангидридом в присутствии серной кислоты в течение 10-14 час. с последующим нагреванием нродукта реакции до 180-220° над известным катализатором дл  синтеза Hsonpeiia.A method of producing acetate (L-dimethylallyl alcohol, characterized in that, in order to simplify the process, dimethyl methadioxane is treated with acetic acid or its anhydride in the presence of sulfuric acid for 10-14 hours, followed by heating the reaction product to 180-220 ° over a known catalyst for the synthesis of Hsonpeiia.

SU624596A 1959-04-09 1959-04-09 The method of producing acetate v1v - dimethylallyl alcohol SU125800A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU624596A SU125800A1 (en) 1959-04-09 1959-04-09 The method of producing acetate v1v - dimethylallyl alcohol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU624596A SU125800A1 (en) 1959-04-09 1959-04-09 The method of producing acetate v1v - dimethylallyl alcohol

Publications (1)

Publication Number Publication Date
SU125800A1 true SU125800A1 (en) 1959-11-30

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Country Status (1)

Country Link
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