SU192801A1 - - Google Patents
Info
- Publication number
- SU192801A1 SU192801A1 SU1002660A SU1002660A SU192801A1 SU 192801 A1 SU192801 A1 SU 192801A1 SU 1002660 A SU1002660 A SU 1002660A SU 1002660 A SU1002660 A SU 1002660A SU 192801 A1 SU192801 A1 SU 192801A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ether
- distilled
- residue
- oxide
- sodium
- Prior art date
Links
- RTZKZFJDLAIYFH-UHFFFAOYSA-N diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- XYIBRDXRRQCHLP-UHFFFAOYSA-N Ethyl acetoacetate Chemical compound CCOC(=O)CC(C)=O XYIBRDXRRQCHLP-UHFFFAOYSA-N 0.000 description 2
- VZJVWSHVAAUDKD-UHFFFAOYSA-N Potassium permanganate Chemical compound [K+].[O-][Mn](=O)(=O)=O VZJVWSHVAAUDKD-UHFFFAOYSA-N 0.000 description 2
- QDRKDTQENPPHOJ-UHFFFAOYSA-N Sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012259 ether extract Substances 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- PMJHHCWVYXUKFD-SNAWJCMRSA-N Piperylene Chemical group C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N acetic acid ethyl ester Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 235000019439 ethyl acetate Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007952 growth promoter Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
Description
СПОСОБ ПОЛУЧЕНИЯ ЛЦЕТОВИНИЛВАЛЕРОЛАКТОНАMETHOD OF OBTAINING LCETOVINYLVALEROLACTONE
Насто щее изобретение относитс к способу получени ацетовиннлвалеролактона, который может быть использован в качестве стимул тора роста сельскохоз йственных растений, например кукурузы.The present invention relates to a method for the production of acetovelenvalerolactone, which can be used as a growth promoter for agricultural plants, such as maize.
Предложен способ получени ацетовинилвалеролактона путем нагревани ацетоуксусного эфира с окисью ниперилепа (2,3 эпоксипептеном-4 ) в присутствии этилата натри . По окончании реакции этиловый спирт отгон ют в вакууме , остаток экстрагируют эфиром, эфирный экстракт сушат безводным сернокислым патрпем , затем отгон ют эфир, а оставшийс продукт перегон ют дважды в вакууме.A method is proposed for preparing acetovinyl valerolactone by heating acetoacetic ester with niperilep oxide (2.3 epoxy petene-4) in the presence of sodium ethoxide. Upon completion of the reaction, ethyl alcohol is distilled off in vacuo, the residue is extracted with ether, the ether extract is dried with anhydrous sulfate patrpem, then the ether is distilled off, and the remaining product is distilled twice in vacuum.
Получают ацетовпнилвалеролактон в виде слабо-желтого масла, обладаюш,его при тным запахом, хорошо растворимого в эфире, бензоле , ацетоне, плохо - в воде.Acetophenylvalerolactone is obtained in the form of a slightly yellow oil, has a pleasant odor, soluble in ether, benzene, acetone, and poorly in water.
Апетовинплвалеролактон быстро обесцвечивает раствор брома и перманганата кали .Apetovinplvalerolactone quickly discolors a solution of bromine and potassium permanganate.
Пример. В трехгорлую колбу емкостью 1 л, снабженную обратным холодильником, капельной воронкой и механической мешалкой, охлаждаемую лед ной водой, помещают 400 лгл абсолютпого этилового спнрта и 23 г натри и по капл м добавл ют 130 г свежеперегнаниого ацетоуксусного эфира. Затем прибавл ют 84 гExample. In a three-liter flask with a capacity of 1 l, equipped with a reflux condenser, a dropping funnel, and a mechanical stirrer, cooled with ice water, 400 l of absolute ethyl spirits and 23 g of sodium are added and 130 g of freshly distilled aceto acetic ether are added dropwise. Then add 84 g
окиси пинерплена, и полученную смесь нагревают на вод ной бане в течение 10-12 час. По окоичаннп реакции отгон ют в вакууме спирт, остаток разлагают 5%-ной серной кислотой , экстрагируют эфиром, эфирный экстракт сушат безводным сернокислым натрием, эфир отгон ют, оставщпйс продукт дважды перегон ют при , и8лиг/;1г. сг., df 1,0764, По 1,4585. MRo пайдено 42,43, вычпслено 41,79.pineplena oxide, and the mixture is heated on a water bath for 10-12 hours. The reaction is distilled off under vacuum in an alcohol, the residue is decomposed with 5% sulfuric acid, extracted with ether, the ether extract is dried with anhydrous sodium sulfate, the ether is distilled off, the remaining product is distilled twice at, and 8 g / 1; cr., df 1.0764, According to 1.4585. The MRo was 42.43, and 41.79 was deducted.
Найдено, %: С 65,07; П 7,25. Мол. вес 169,2 (в бензоле).Found,%: C 65.07; P 7.25. Mol weight 169.2 (in benzene).
15CgHisOa15CgHisOa
Вычислено, %: С 64,27; Н 7,16. вес 168,2.Calculated,%: C 64.27; H 7.16. weight 168.2.
Предмет изобретени Subject invention
Способ получени ацетовиннлвалеролактона, отличающийс тем, что ацетоуксусный эфир нагревают с окисью пиперилена в присутствии этилата натри в среде безводного этилового спирта с последующей отгонкой этилового сппрта в вакууме, экстракцией остатка эфиром и очисткой его известным путем.A method for preparing acetovinvalerolactone, wherein acetoacetic ester is heated with piperylene oxide in the presence of sodium ethylate in anhydrous ethyl alcohol, followed by distillation of ethyl alum in vacuum, extraction of the residue with ether and purification using a known method.
Publications (1)
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SU192801A1 true SU192801A1 (en) |
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