SU320490A1 - METHOD OF OBTAINING 2,2-DIMETHYLETHYLENYMINE - Google Patents
METHOD OF OBTAINING 2,2-DIMETHYLETHYLENYMINEInfo
- Publication number
- SU320490A1 SU320490A1 SU1444370A SU1444370A SU320490A1 SU 320490 A1 SU320490 A1 SU 320490A1 SU 1444370 A SU1444370 A SU 1444370A SU 1444370 A SU1444370 A SU 1444370A SU 320490 A1 SU320490 A1 SU 320490A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- dimethylethylenymine
- obtaining
- yield
- butyl
- hydrolysis
- Prior art date
Links
- 238000005903 acid hydrolysis reaction Methods 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 238000006460 hydrolysis reaction Methods 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- FGRJGEWVJCCOJJ-UHFFFAOYSA-N 2,2-dimethylaziridine Chemical compound CC1(C)CN1 FGRJGEWVJCCOJJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000004821 distillation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N aziridine Chemical class C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
Description
Изобретение относитс к получению производных этиленимина, например 2,2-диметилэтиленимина , которые наход т применение в качестве исходных соединений дл синтеза физиологически активных веществ.The invention relates to the preparation of ethyleneimine derivatives, for example, 2,2-dimethylethylenimine, which are used as starting compounds for the synthesis of physiologically active substances.
Известен способ получени 2,2-диметилзтиленимина путем взаимодействи 2-амино-2метилпропанола-1 и серной кислоты с последующей циклизацией образующегос сульфата в щелочной среде.A known method for producing 2,2-dimethylstilenimine by reacting 2-amino-2-methylpropanol-1 and sulfuric acid, followed by cyclization of the resulting sulfate in an alkaline medium.
Однако выход целевого продукта при этом составл ет только 45-51 %.However, the yield of the target product is only 45-51%.
С целью увеличени выхода 2,2-диметилэтиленимина предлагаетс получать его кислотным гидролизом М-(хлор-т/7ег-бутил)-5алкилтиоуретанов , проводимым обычно в присутствии окислител , например перекиси водорода , котора несколько ускор ет гидролиз и предотвращает выделение летучих сернистых соединений.In order to increase the yield of 2,2-dimethylethylenimine, it is proposed to produce it by acid hydrolysis of M- (chloro-t / 7g-butyl) -5 alkylthiourethanes, usually carried out in the presence of an oxidizing agent, for example hydrogen peroxide, which somewhat speeds up hydrolysis and prevents the release of volatile sulfur compounds.
Образующуюс соль 1-хлор-2-амино-2-метилпропа}1а обрабатывают концентрированной щелочью. Полученный 2,2-диметилэтиленимин выдел ют из реакционной массы известными приемами. Выход 67% от теории.The resulting salt of 1-chloro-2-amino-2-methylpropane} 1a is treated with concentrated alkali. The resulting 2,2-dimethylethylenimine is isolated from the reaction mass by known methods. Yield 67% of theory.
Пример. К раствору 9,075 г (0,05 моль) Ы-(хлор-т/ ет-бутил)-тиоуретилана в смесиExample. To a solution of 9.075 g (0.05 mol) of L- (chloro-t / et-butyl) -thiourethylene in a mixture
40 мл уксусной кислоты и 3 мл серной кислоты при 50-60°С и размешивании в течение 30 мин добавл ют 0,18 моль (10,8 мл 30%ной перекиси водорода. Смесь размешивают40 ml of acetic acid and 3 ml of sulfuric acid at 50-60 ° C and 0.18 mol (10.8 ml of 30% hydrogen peroxide) are added over 30 minutes while stirring. The mixture is stirred
еще 1 час при этой температуре, затем отгон ют с паром летучие (сернистые соединени и большую часть уксусной кислоты), причем объем раствора в перегонной колбе не должен заметно увеличиватьс (отгонную колбуfor another 1 hour at this temperature, then volatiles (sulfur compounds and most of acetic acid) are distilled off with steam, and the volume of the solution in the distillation flask should not markedly increase (the distillation flask
лучше теплоизолировать).better to insulate).
Содержимое отгонной колбы перенос т в капельную воронку и постепенно прикапывают к 100 мл 40%-ного раствора едкого натра, отгон с паром образующийс 2,2-диметилэтиленимпн .The contents of the distant flask are transferred to a dropping funnel and gradually added dropwise to 100 ml of a 40% aqueous solution of sodium hydroxide, the distillate with steam forming 2.2-dimethylethylenylene.
Предмет изобретени Subject invention
Claims (2)
Publications (1)
Publication Number | Publication Date |
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SU320490A1 true SU320490A1 (en) |
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