827-79-2

Upstream product

• 95-47-6 o-xylene 
• 106-99-0 buta-1,3-diene 
• 42946-77-0 5-ortho-tolylpentene 

Downstream Products

• 1595-07-9 1-Methyl-2-pentylbenzene 
• 1384245-84-4 C₁₂H₁₆O 
• 103094-50-4 5-(2-tolyl)pentan-2-one 

Relevant academic research and scientific papers

Palladium-catalyzed double-bond migration of unsaturated hydrocarbons accelerated by tantalum chloride

The operationally simple palladium-catalyzed double-bond migration without heteroatom-containing coordinating functional groups is described. Addition of TaCl5 as a second catalyst greatly enhanced the migration efficiency to provide β-alkylsty

Process for producing alkenyl-substituted aromatic hydrocarbons

There are provided a process for producing an alkenyl-substituted aromatic hydrocarbon by alkenylation of an alkyl-substituted aromatic hydrocarbon having a hydrogen atom at the α-position of a side chain thereof with a conjugated diene, using a catalyst obtained by the action of an alkali metal compound and an alkali metal or an alkali metal hydroxide on an metal oxide selected from alumina or hydrotalcite by heating in a specific temperature range; and a process for producing an alkenyl-substituted aromatic hydrocarbon, characterized in that the reaction is carried out in the presence of an alkylaminopyridine of formula (1): wherein R1is hydrogen or C1-C6lower alkyl, and R1is C1-C6lower alkyl, using as a catalyst, Na metal, K metal, or an alloy thereof, or a catalyst carrying any of them on an inorganic compound support, or a catalyst obtained by the action of an alkali metal compound and alkali metal or an alkali metal hydride on a metal oxide selected from alumina, alkaline earth metal oxides, hydrotalcite, silica-alumina, or zeolite by heating in a temperature range of 70° C. to 700° C.

Process for producing a monoalkenylaromatic hydrocarbon compound

A solid material is obtained by calcining a mixture of a carbonate or a hydroxide of an alkaline earth metal and a potassium compound, adding an alkali metal to the obtained calcined product under an atmosphere of an inert gas, and subsequently heat treating the obtained mixture at a temperature which is the same as or higher than the melting point of the alkali metal. A process for producing a monoalkenylaromatic hydrocarbon which comprises alkenylating a side chain of an aromatic hydrocarbon compound having at least one hydrogen atom at the α-position of the side chain with a conjugated diene having 4 or 5 carbon atoms in the presence of a catalyst comprising the obtained solid material is disclosed. In accordance with the above process, a monoalkenenyl aromatic hydrocarbon can be produced safely at a low cost, and the process has a remarkable industrial advantage.

Process for producing monoalkenyl aromatic hydrocarbon compound

Their is disclosed a process for producing a monoalkenyl aromatic hydrocarbon compound (e.g. 5-(o-tolyl)-2-pentene) which comprises the steps of alkenylating a side chain of an aromatic hydrocarbon compound having at lease one hydrogen atom bonded to α-position of the side chain (e.g. alkylbenzene) by the use of a conjugated diene having 4 to 5 carbon atoms (e.g. 1-3 butadiene) in the presence an alkali metal-based catalyst supported on a carrier; removing at least part of the catalyst from the resultant reaction product by separating the same; inactivating and optionally removing the catalyst contained in the reaction product; and thereafter distilling the reaction produce in liquid form to separate and recover the objective monoalkenyl aromatic hydrocarbon compound. By virtue of using the above specific method, the process can prevent the change in quality and properly of the objective product even during atmospheric distillation, produce the objective product with high purity in high recovery race and operate a distillation column during a long stable period of time.