GB629138A - Improvements in and relating to methods of preparing alkyl-orthosilicates - Google Patents
Improvements in and relating to methods of preparing alkyl-orthosilicatesInfo
- Publication number
- GB629138A GB629138A GB16234/47A GB1623447A GB629138A GB 629138 A GB629138 A GB 629138A GB 16234/47 A GB16234/47 A GB 16234/47A GB 1623447 A GB1623447 A GB 1623447A GB 629138 A GB629138 A GB 629138A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alcohols
- alcohol
- aliphatic
- employed
- ether
- 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
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
- C07F7/02—Silicon compounds
- C07F7/04—Esters of silicic acids
Abstract
Orthosilicates are prepared by reacting aliphatic alcohols with magnesium silicide, e.g. by refluxing the reactants, if necessary, in an inert solvent such as a hydrocarbon (benzene, toluene or petroleum ether) or an ether (diethyl or dibutyl ether). When a monohydroxy alcohol is employed, at least 8 mols. of the alcohol to 1 mol. of magnesium silicide may be employed. Alcohols containing a small amount of water may be employed, and the reaction may be initiated by adding a small quantity of a highly reactive alcohol, e.g. methyl alcohol followed by the alcohol to be used, and the desired ester is separated by fractional distillation. Suitable alcohols are aliphatic monohydroxy alcohols such as methanol, ethanol, propanol, isopropanol and other normal and branched chain alcohols of the homologues series including higher molecular weight alcohols such as octadecanol, unsaturated aliphatic alcohols such as allyl, methallyl and crotyl alcohols, and aliphatic polyhydroxy alcohols such as ethylene glycol. In examples, methyl and ethyl silicate are prepared. The Specification as open to inspection under Sect. 91 refers to the use of other types of organo-hydroxy compounds for the above process, e.g. aromatic alcohols and phenols, in particular benzyl alcohol and guaiacol. This subject-matter does not appear in the Specification as accepted.ALSO:Stone is preserved with aliphatic esters of ortho silicic acid
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US629138XA | 1946-06-19 | 1946-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB629138A true GB629138A (en) | 1949-09-13 |
Family
ID=22045665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16234/47A Expired GB629138A (en) | 1946-06-19 | 1947-06-19 | Improvements in and relating to methods of preparing alkyl-orthosilicates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB629138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8865850B2 (en) | 2012-06-14 | 2014-10-21 | Dow Corning Corporation | Method of selectively forming a reaction product in the presence of a metal silicide |
-
1947
- 1947-06-19 GB GB16234/47A patent/GB629138A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8865850B2 (en) | 2012-06-14 | 2014-10-21 | Dow Corning Corporation | Method of selectively forming a reaction product in the presence of a metal silicide |
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