SU95989A1 - Method for selective hydrogenation of double bonds of unsaturated carbonyl compounds - Google Patents
Method for selective hydrogenation of double bonds of unsaturated carbonyl compoundsInfo
- Publication number
- SU95989A1 SU95989A1 SU446024A SU445924A SU95989A1 SU 95989 A1 SU95989 A1 SU 95989A1 SU 446024 A SU446024 A SU 446024A SU 445924 A SU445924 A SU 445924A SU 95989 A1 SU95989 A1 SU 95989A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- carbonyl compounds
- unsaturated carbonyl
- double bonds
- selective hydrogenation
- hydrogenation
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Известны способы избирательного гидрировани ненасыщенных карбонильных соединений в присутствии скелетного никелевого катализатора .Methods are known for selectively hydrogenating unsaturated carbonyl compounds in the presence of a skeletal nickel catalyst.
Однако гидрирование в этом слу-. чае ведут при нагревании, что не применимо к веществам, неустойчивым при повыщенной температуре .However, hydrogenation in this case. Tea is carried out with heating, which is not applicable to substances that are unstable at elevated temperatures.
Предлагаемый способ избирательного гидрировани двойных св зей ненасыщенных карбонильных соединений отличаетс тем, что реакцию провод т под давлением В 150-200 атмосфер без нагревани Применение высокого давлени повышает избирательность гидрировани , а ведение процесса без нагревани сокращает рабочий цикл автоклавов и дает возможность проводить селективное гидрирование соединений, не выдерживающих повыщениых температур.The proposed method of selectively hydrogenating double bonds of unsaturated carbonyl compounds is characterized in that the reaction is carried out at a pressure of 150-200 atmospheres without heating. The use of high pressure increases the selectivity of hydrogenation, and running the process without heating shortens the autoclave cycle and not able to withstand elevated temperatures.
Пример 1. 1 кг цитрал гидрируетс В автоклаве в присутствии 1 кг спирта и 50 2 катализатора при давлении 200 атм и температуре 20 В течение 1 часа до поглощени необходимого количества водорода . Выход цитронеллал 90- qso/Example 1. 1 kg of citral is hydrogenated in an autoclave in the presence of 1 kg of alcohol and 50 2 of catalyst at a pressure of 200 atm and a temperature of 20 Within 1 hour until the required amount of hydrogen is absorbed. Citronellal 90-qso yield
УО /о .PP / o
Пример 2. I кг бензалацетона гидрируетс В автоклаве в присутствии 1 кг спирта и 30 г катализатора при давлении 200 атм и температуре 20° В течение 30 минут до поглощени необходимого количества водорода. Выход бензилацетона 80-85%.Example 2. I kg of benzalacetone is hydrogenated In an autoclave in the presence of 1 kg of alcohol and 30 g of catalyst at a pressure of 200 atm and a temperature of 20 ° C for 30 minutes until the required amount of hydrogen is absorbed. The output of benzylacetone 80-85%.
Пример 3. 1 кг коричного альдегида гидрируетс В присутствии 1 кг спирта и 50 2 катализатора в течение б часов до поглощени необходимого количества водорода. Выход гидрокоричного альдегида 80-85%.Example 3. 1 kg of cinnamon aldehyde is hydrogenated In the presence of 1 kg of alcohol and 50 2 catalysts for b hours before the required amount of hydrogen is absorbed. The output of hydrochloric aldehyde 80-85%.
Пример 4. кг метилионона гидрируетс В присутствии 1 кг спирта к 50 г катализатора в течение 1 часа до поглощени необходимого количества водорода. Выход дигидрометилионона 90-95%.Example 4. Kg of methylionone is hydrogenated. In the presence of 1 kg of alcohol to 50 g of catalyst for 1 hour to absorb the required amount of hydrogen. The output dihydromethylamino 90-95%.
Предмет изобретени Subject invention
Способ избирательного гидрировани ДВОЙНЫХ св зей ненасыщенных карбонильных соединений в присутствии скелетного никелевого катализатора, отличающийс тем, что, с целью достижени избирательности гидрировани , реакцию провод т под давлением в 150-200 атмосфер без нагревани .A method of selectively hydrogenating DUAL bonds of unsaturated carbonyl compounds in the presence of a skeletal nickel catalyst, characterized in that, in order to achieve selective hydrogenation, the reaction is carried out under a pressure of 150-200 atmospheres without heating.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU446024A SU95989A1 (en) | 1952-12-01 | 1952-12-01 | Method for selective hydrogenation of double bonds of unsaturated carbonyl compounds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU446024A SU95989A1 (en) | 1952-12-01 | 1952-12-01 | Method for selective hydrogenation of double bonds of unsaturated carbonyl compounds |
Publications (1)
Publication Number | Publication Date |
---|---|
SU95989A1 true SU95989A1 (en) | 1953-11-30 |
Family
ID=48370937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU446024A SU95989A1 (en) | 1952-12-01 | 1952-12-01 | Method for selective hydrogenation of double bonds of unsaturated carbonyl compounds |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU95989A1 (en) |
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1952
- 1952-12-01 SU SU446024A patent/SU95989A1/en active
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