RU2000126367A - METHOD OF OBTAINING 1,2-DIALKIL-1Z, 3-BUTADIENES - Google Patents

METHOD OF OBTAINING 1,2-DIALKIL-1Z, 3-BUTADIENES

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Publication number
RU2000126367A
RU2000126367A RU2000126367/04A RU2000126367A RU2000126367A RU 2000126367 A RU2000126367 A RU 2000126367A RU 2000126367/04 A RU2000126367/04 A RU 2000126367/04A RU 2000126367 A RU2000126367 A RU 2000126367A RU 2000126367 A RU2000126367 A RU 2000126367A
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RU
Russia
Prior art keywords
reaction mass
butadienes
obtaining
stirring
followed
Prior art date
Application number
RU2000126367/04A
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Russian (ru)
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RU2185360C1 (en
Inventor
Усеин Меметович Джемилев
Асхат Габдрахманович Ибрагимов
Ильфир Рифович Рамазанов
Марина Петровна Лукьянова
Альфия Зуфаровна Шарипова
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Институт нефтехимии и катализа АН РБ и УНЦ РАН
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Priority to RU2000126367A priority Critical patent/RU2185360C1/en
Priority claimed from RU2000126367A external-priority patent/RU2185360C1/en
Application granted granted Critical
Publication of RU2185360C1 publication Critical patent/RU2185360C1/en
Publication of RU2000126367A publication Critical patent/RU2000126367A/en

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Claims (1)

Способ получения 1,2-диалкил-1Z, 3-бутадиенов общей формулы
Figure 00000001

где R= n-Pr, n-Bu,
отличающийся тем, что диалкилзамещенные ацетилены формулы RC≡CR взаимодействуют с триэтилалюминием (Et3Al) в присутствии катализатора цирконацендихлорида (Cp2ZrCl2), взятыми в мольном соотношении
Figure 00000002
при нормальных условиях в среде гексана в качестве растворителя при перемешивании в течение 8 ч с последующим добавлением к реакционной массе при температуре -5oС аллилацетата (AllyloAc) и каталитических количеств ацетилацетоната палладия (Pd(асас)2), взятых в мольном соотношении
Figure 00000003
в тетрагидрофуране и перемешивании реакционной массы в течение 8-12 ч при комнатной температуре с последующим гидролизом реакционной массы раствором соляной кислоты.The method of obtaining 1,2-dialkyl-1Z, 3-butadienes of the general formula
Figure 00000001

where R = n-Pr, n-Bu,
characterized in that the dialkyl substituted acetylenes of the formula RC≡CR interact with triethylaluminium (Et 3 Al) in the presence of a catalyst of zirconene dichloride (Cp 2 ZrCl 2 ), taken in a molar ratio
Figure 00000002
under normal conditions in hexane as a solvent with stirring for 8 hours, followed by adding to the reaction mass at a temperature of -5 o C allyl acetate (AllyloAc) and catalytic amounts of palladium acetylacetonate (Pd (acac) 2 ), taken in a mole ratio
Figure 00000003
in tetrahydrofuran and stirring the reaction mass for 8-12 hours at room temperature, followed by hydrolysis of the reaction mass with a solution of hydrochloric acid.
RU2000126367A 2000-10-19 2000-10-19 Method of synthesis of 1,2-dialkyl-1z,3-butadienes RU2185360C1 (en)

Priority Applications (1)

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RU2000126367A RU2185360C1 (en) 2000-10-19 2000-10-19 Method of synthesis of 1,2-dialkyl-1z,3-butadienes

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RU2000126367A RU2185360C1 (en) 2000-10-19 2000-10-19 Method of synthesis of 1,2-dialkyl-1z,3-butadienes

Publications (2)

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RU2185360C1 RU2185360C1 (en) 2002-07-20
RU2000126367A true RU2000126367A (en) 2002-08-10

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