GB397883A - Manufacture of cyclohexyl-cyclohexanol and homologues thereof - Google Patents
Manufacture of cyclohexyl-cyclohexanol and homologues thereofInfo
- Publication number
- GB397883A GB397883A GB298432A GB298432A GB397883A GB 397883 A GB397883 A GB 397883A GB 298432 A GB298432 A GB 298432A GB 298432 A GB298432 A GB 298432A GB 397883 A GB397883 A GB 397883A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogenation
- homologues
- cyclohexanol
- cyclohexylidene
- cyclohexanone
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
Cyclohexyl-cyclohexanol and its homologues are obtained by the hydrogenation of cyclohexylidene-cyclohexanone or its homologues using a catalyst belonging to the group of nonnoble metals, such as iron, nickel or copper, or a mixture of such metals. The catalyst may contain a promoter such as magnesium oxide or chromium oxide, and may be carried on a support. The hydrogenation is preferably carried out under pressure, e.g. 10 atmospheres and at a temperature of 150 DEG C. The cyclohexylidene-cyclohexanone may be prepared from cyclohexanol by condensation with agents such as caustic alkalis, sodium ethylate, barium hydroxide or hydrochloric acid. The condensation product is preferably freed from the condensing agent and purified by distillation. The crude condensation product may be hydrogenated if it is free from acid and combined halogen. Specifications 2306/14, [Class 1 (i), Chemical processes &c.], and 383,472 are referred to.ALSO:Cyclohexyl-cyclohexanol and its homologues are obtained by the hydrogenation of cyclohexylidene-cyclohexanone or its homologues, using a catalyst belonging to the group of non-noble metals, such as iron, nickel or copper, or a mixture of such metals. The catalyst may contain a promoter such as magnesium oxide or chromium oxide and may be carried on a support. The hydrogenation is preferably carried out under pressure, e.g. 10 atmospheres and at a temperature of 150 DEG C. The hydrogenation may be started at a lower temperature and pressure, for example 70 DEG C. and 5 atmospheres, and the temperature and pressure increased when the absorption of hydrogen becomes slow. The cyclohexylidene-cyclohexanone may be prepared from cyclohexanol by condensation with agents such as caustic alkalis, sodium ethylate, barium hydroxide or hydrochloric acid. The condensation product is preferably freed from the condensing agent and purified by distillation. The crude condensation product may be hydrogenated if it is free from acid and combined halogen. Specifications 2306/14, [Class 1 (i), Chemical processes &c.], and 383,472 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB298432A GB397883A (en) | 1932-02-01 | 1932-02-01 | Manufacture of cyclohexyl-cyclohexanol and homologues thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB298432A GB397883A (en) | 1932-02-01 | 1932-02-01 | Manufacture of cyclohexyl-cyclohexanol and homologues thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB397883A true GB397883A (en) | 1933-09-01 |
Family
ID=9749713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB298432A Expired GB397883A (en) | 1932-02-01 | 1932-02-01 | Manufacture of cyclohexyl-cyclohexanol and homologues thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB397883A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2467451A (en) * | 1944-10-09 | 1949-04-19 | Celanese Corp | Manufacture of cyclic aliphatic dihydroxy compounds |
| US2576078A (en) * | 1949-01-03 | 1951-11-20 | Dow Chemical Co | Method for the preparation of 2-(2-cycloalkenyl) cycloalkanols |
| US2640785A (en) * | 1949-10-20 | 1953-06-02 | Monsanto Chemicals | Stabilized cellulose ester compositions |
| US4484005A (en) * | 1982-02-15 | 1984-11-20 | Stamicarbon B.V. | Process for the preparation of cyclohexyl cyclohexanone |
-
1932
- 1932-02-01 GB GB298432A patent/GB397883A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2467451A (en) * | 1944-10-09 | 1949-04-19 | Celanese Corp | Manufacture of cyclic aliphatic dihydroxy compounds |
| US2576078A (en) * | 1949-01-03 | 1951-11-20 | Dow Chemical Co | Method for the preparation of 2-(2-cycloalkenyl) cycloalkanols |
| US2640785A (en) * | 1949-10-20 | 1953-06-02 | Monsanto Chemicals | Stabilized cellulose ester compositions |
| US4484005A (en) * | 1982-02-15 | 1984-11-20 | Stamicarbon B.V. | Process for the preparation of cyclohexyl cyclohexanone |
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