SU150521A1 - - Google Patents
Info
- Publication number
- SU150521A1 SU150521A1 SU757240A SU757240A SU150521A1 SU 150521 A1 SU150521 A1 SU 150521A1 SU 757240 A SU757240 A SU 757240A SU 757240 A SU757240 A SU 757240A SU 150521 A1 SU150521 A1 SU 150521A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- mixture
- catalyst
- temperature
- alcohols
- reaction
- Prior art date
Links
- 239000000203 mixture Substances 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005804 alkylation reaction Methods 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 1
- -1 aliphatic alcohols Chemical class 0.000 description 1
- 239000002168 alkylating agent Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- KBPLFHHGFOOTCA-UHFFFAOYSA-N octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 238000005932 reductive alkylation reaction Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
Известен способ получени М,Ы-ди-(С8 или Сд)-алкил-п-фенилен .диамина, заключающийс в восстановительном алкилировании л-фенилендиамина альдегидами при температуре 100-250°С, давлении 5- 200 атм, в присутствии смеси окислов хрома, меди и бари .A known method for producing M, L-di- (C8 or Cd) -alkyl-p-phenylene diamine, which consists in the reductive alkylation of l-phenylenediamine with aldehydes at a temperature of 100-250 ° C, a pressure of 5 to 200 atm, in the presence of a mixture of chromium oxides copper and bari.
Предложенный способ отличаетс тем, что в качестве алкилирующего агента используют смесь алифатических спиртов нормального строени , а в качестве катализатора Ni-Рене , что упрощает и удешевл ет процесс.The proposed method is characterized in that a mixture of normal aliphatic alcohols is used as the alkylating agent, and a Ni-Rene catalyst is used as a catalyst, which simplifies and reduces the cost of the process.
Алкилирование Аг-фенилендиамина смесью спиртов нормального строени Ст-Сд осуществл ют при температуре ПО-190°С и перемешивании в течение 3,5-4 час в присутствии катализатора Ni-Рене при атмосферном давлении.Alkylation of Ag-phenylenediamine with a mixture of normal alloys of St-Cd is carried out at PO-190 ° C and stirring for 3.5-4 hours in the presence of Ni-René catalyst at atmospheric pressure.
При температуре ПО-112°С отгон етс вода с небольшой примесью смеси спиртов. По окончании реакции при температуре 70- 80°С реакционную массу отфильтровывают от катализатора и затем разгон ют под вакуумом, с целью отгонки спиртов и выделени целевого продукта.At a PO-112 ° C temperature, water is distilled off with a small admixture of a mixture of alcohols. At the end of the reaction at a temperature of 70-80 ° C, the reaction mass is filtered off from the catalyst and then dispersed under vacuum, in order to distill the alcohols and isolate the desired product.
Полноту реакции алкилировани определ ют хроматографически по методике капельного анализа до отрицательной реакции на первичный амин.The completeness of the alkylation reaction is determined chromatographically by the method of drip analysis to a negative reaction to the primary amine.
Пример. В трехгорлую колбу, емкостью 1 л, снабженную мешалкой , термометром, обратным холодильником и системой пр мых холодильников, один из которых обогреваетс загружают 108,15 г (1 г-м) п-фен.илендиамина, 520,88 г (4 г-м, счита на н. октиловый спирт) смеси спиртов нормального строени Су-Сд с температуройExample. In a three-necked flask with a capacity of 1 l, equipped with a stirrer, a thermometer, a reflux condenser, and a system of direct refrigerators, one of which is heated, 108.15 g (1 g / m) p-phen.ylenediamine, 520.88 g (4 g- m, counting on n. octyl alcohol) a mixture of alcohols of normal structure Su-Cd with temperature
Publications (1)
Publication Number | Publication Date |
---|---|
SU150521A1 true SU150521A1 (en) |
Family
ID=
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5015773A (en) * | 1988-08-18 | 1991-05-14 | Bp Chemicals Limited | Reductive amination of hydroxy-containing compounds |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5015773A (en) * | 1988-08-18 | 1991-05-14 | Bp Chemicals Limited | Reductive amination of hydroxy-containing compounds |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2056681C (en) | Process for the preparation of 1,3-propanediol | |
RU2530027C2 (en) | Method of producing polymethylols | |
JP3369707B2 (en) | Purification method of 1,3-butylene glycol | |
RU2531613C2 (en) | Method of producing polymethylols | |
RU2690678C2 (en) | 1,3-butadiene from 1,3-butanediol production method | |
US20110306779A1 (en) | Process for the Preparation and Isolation of 2-Substituted Tetrahydropyranols | |
SU150521A1 (en) | ||
MXPA02006394A (en) | Method for purifying trimethylolpropane, which is produced by hydrogenation, by means of continuous distillation. | |
US3597438A (en) | Reductive amination of aldehydes with rhodium catalysts | |
US2601387A (en) | Preparation of amides having tertiary carbon attached to amido nitrogen | |
US3397238A (en) | Process for the preparation of alkyl ethers of amino-alcohols | |
US3087965A (en) | Preparation of nu-alkoxymethyl substituted amides | |
US4864066A (en) | Preparation of alkanediols from alkynols | |
US4307252A (en) | 2-Propyl-pent-4-en-1-al | |
US2618658A (en) | 2,2-dimethyl-3-hydroxypropylamine and process for its preparation | |
Monick | Continuous high temperature preparation of alkylolamides | |
US4137268A (en) | Method of preparing aminoacetaldehyde acetals by the hydrogenation of dialkoxyacetonitrile | |
RU2778338C1 (en) | Method for obtaining aminoacetic acid | |
US3535373A (en) | Preparation of amino carboxylic acid salts | |
SU150523A1 (en) | ||
US3809722A (en) | Process for producing alkoxy aldehydes | |
SU150522A1 (en) | ||
KR100760776B1 (en) | Method for Removing Acetals Containing Formaldehyde from Polyvalent Alcohols by Means of Tempering | |
CN109369630A (en) | Replace glucose acids surfactant and its preparation and application | |
EP0556297A1 (en) | Process for producing imines and/or amines from alcohols. |