GB782084A - Process for the preparation of alkyl-aryl compounds - Google Patents
Process for the preparation of alkyl-aryl compoundsInfo
- Publication number
- GB782084A GB782084A GB29018/55A GB2901855A GB782084A GB 782084 A GB782084 A GB 782084A GB 29018/55 A GB29018/55 A GB 29018/55A GB 2901855 A GB2901855 A GB 2901855A GB 782084 A GB782084 A GB 782084A
- Authority
- GB
- United Kingdom
- Prior art keywords
- isopropylbenzenes
- benzene
- parts
- propylene
- para
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
- C07C2/54—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
- C07C2/64—Addition to a carbon atom of a six-membered aromatic ring
- C07C2/66—Catalytic processes
- C07C2/68—Catalytic processes with halides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
- C07C2/54—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition of unsaturated hydrocarbons to saturated hydrocarbons or to hydrocarbons containing a six-membered aromatic ring with no unsaturation outside the aromatic ring
- C07C2/64—Addition to a carbon atom of a six-membered aromatic ring
- C07C2/66—Catalytic processes
- C07C2/70—Catalytic processes with acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- C07C2527/06—Halogens; Compounds thereof
- C07C2527/08—Halides
- C07C2527/12—Fluorides
- C07C2527/1206—Hydrogen fluoride
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- C07C2527/06—Halogens; Compounds thereof
- C07C2527/08—Halides
- C07C2527/12—Fluorides
- C07C2527/1213—Boron fluoride
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- C07C2527/06—Halogens; Compounds thereof
- C07C2527/125—Compounds comprising a halogen and scandium, yttrium, aluminium, gallium, indium or thallium
- C07C2527/126—Aluminium chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Alkyl-aryl compounds are prepared by reacting benzene with propylene in the presence of an acid reacting alkylation catalyst to produce a mixture containing mono-isopropylbenzenes, para- and meta-di-isopropylbenzenes and higher poly-isopropyl-benzenes, separating mono-isopropylbenzene as a desired product and also separating one or both of the di-isopropylbenzenes, and recycling the other aromatic compounds, the ratio of propylene to benzene being 0.7 to 1.5 mols. of propylene per mol. of benzene. The catalyst is preferably aluminium chloride, hydrogen fluoride or boron trifluoride. The reaction temperature may be in the range of 80-150 DEG C. and the time from 0.1 to 10 hours. In a typical example 25 parts of aluminium chloride, 480 parts of benzene, and 12.5 parts of isopropyl chloride are charged into a glass, ceramic or corrosion-resistant metal and propylene gas passed in over a period of 2 hours. The mass is cooled to room temperature and then poured into 500 parts of water containing HCl and stirred and on standing the upper hydrocarbon layer is recovered, washed with caustic soda solution and then the cumene, and meta- and para-di-isopropylbenzenes recovered as separate products.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US782084XA | 1954-11-08 | 1954-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB782084A true GB782084A (en) | 1957-08-28 |
Family
ID=22142617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29018/55A Expired GB782084A (en) | 1954-11-08 | 1955-10-12 | Process for the preparation of alkyl-aryl compounds |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB782084A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2920118A (en) * | 1954-11-08 | 1960-01-05 | Mid Century Corp | Process for the preparation of alkylaryl compounds |
US3398207A (en) * | 1966-12-01 | 1968-08-20 | Sun Oil Co | Selective isopropylation of pseudocumene |
-
1955
- 1955-10-12 GB GB29018/55A patent/GB782084A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2920118A (en) * | 1954-11-08 | 1960-01-05 | Mid Century Corp | Process for the preparation of alkylaryl compounds |
US3398207A (en) * | 1966-12-01 | 1968-08-20 | Sun Oil Co | Selective isopropylation of pseudocumene |
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