GB681993A - Improvements in and relating to the stabilisation of aldehydes - Google Patents
Improvements in and relating to the stabilisation of aldehydesInfo
- Publication number
- GB681993A GB681993A GB1254949A GB1254949A GB681993A GB 681993 A GB681993 A GB 681993A GB 1254949 A GB1254949 A GB 1254949A GB 1254949 A GB1254949 A GB 1254949A GB 681993 A GB681993 A GB 681993A
- Authority
- GB
- United Kingdom
- Prior art keywords
- butyl
- sec
- aldehydes
- salicylamines
- ch2nr1r2
- 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
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/86—Use of additives, e.g. for stabilisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Aldehydes, particularly nonaldehyde, are stabilized by the addition of a small amount of a substituted phenol of the general formula <FORM:0681993/IV (b)/1> wherein at least one of the groups is of the type -CH2NR1R2, and those which are neither -CH2NR1R2 nor H are -CH3; and of R1 and R2, one is H and the other alkyl or aryl, or both are alkyl. Phenols specified are mono- and di-(diethylaminomethyl) - p - cresols; di- and tri - (dimethylaminomethyl) - phenol; and N - methyl-, N-isopropyl-, N-sec.-butyl-, N-tert.-butyl-, and N-phenyl-salicylamines. N-sec.-butyl-salicylamine is prepared by forming a Schiff's base by condensation of salicylaldehyde with N-sec.-butylamine and reducing the base with hydrogen in the presence of Raney nickel catalyst. The N-isopropyl- and N-tert.-butyl-salicylamines are similarly prepared. The Provisional Specification refers also to the inhibition of peroxidation of ethers, of polymerization of monomers, and of gum formation in petrols.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1254949A GB681993A (en) | 1949-05-11 | 1949-05-11 | Improvements in and relating to the stabilisation of aldehydes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1254949A GB681993A (en) | 1949-05-11 | 1949-05-11 | Improvements in and relating to the stabilisation of aldehydes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB681993A true GB681993A (en) | 1952-11-05 |
Family
ID=10006673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1254949A Expired GB681993A (en) | 1949-05-11 | 1949-05-11 | Improvements in and relating to the stabilisation of aldehydes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB681993A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2855399A (en) * | 1958-10-07 | Piperroylmethyl | ||
| US2920101A (en) * | 1956-10-18 | 1960-01-05 | Dow Chemical Co | Nitrogenous compounds |
-
1949
- 1949-05-11 GB GB1254949A patent/GB681993A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2855399A (en) * | 1958-10-07 | Piperroylmethyl | ||
| US2920101A (en) * | 1956-10-18 | 1960-01-05 | Dow Chemical Co | Nitrogenous compounds |
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