GB826558A - Production of stable dimethylamine-borine - Google Patents
Production of stable dimethylamine-borineInfo
- Publication number
- GB826558A GB826558A GB4422/56A GB442256A GB826558A GB 826558 A GB826558 A GB 826558A GB 4422/56 A GB4422/56 A GB 4422/56A GB 442256 A GB442256 A GB 442256A GB 826558 A GB826558 A GB 826558A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dimethylamine
- stable
- borine
- reaction
- product
- 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
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Abstract
Dimethylamine-borine, stable at room temperature, having the formula (CH3)2NH:BH3, is useful as an additive to liquid hydrocarbon fuels to minimize the catalytic effect of metallic or carbonaceous deposits in internal combustion engines and thereby prevents an increase in the octane rating of gasoline or the cetane rating of diesel engine fuels. (For preparation see Group IV (b)).ALSO:The invention comprises a dimethylamineborine which is stable at room temperature and has the formula (CH3)2NH : BH3. The compound has a melting-point of 36 DEG C., is stable to heat at 110 DEG C. and at the boiling-point of neutral and alkaline aqueous solutions, and is of non-ionic character. The stable dimethylamine-borine may be prepared by electrolysis of a solution of an ionic borohydride in dimethylamine using direct current and an inert anode (e.g. platinum) and cathode (e.g. mercury). Sodium borohydride is preferred but other alkali or alkaline earth borohydrides may be used. The product may be recovered by evaporating off the dimethylamine. The stable dimethylamine-borine may also be obtained by reacting diborane with dimethylamine at 7 DEG C., allowing the reaction vessel to warm up naturally from the heat of reaction, the product being separated by crystallization from the reaction mixture. The novel compound may also be obtained by heating together a metallic borohydride, such as sodium borohydride, and a dimethylammonium salt, such as dimethylammonium dihydrogen phosphate, and recovering the product by sublimation. The unstable dimethylamine-borine (obtained by reaction of diborane with dimethylamine at - 45 DEG C.) can be converted into the stable dimethylamine borine by vacuum distillation at 60 DEG C. and 2 mm. pressure, or by recrystallization from a solvent such as boiling petroleum ether. The stable dimethylamine-borine is useful as an intermediate for other boron-nitrogen compounds and as an additive to liquid hydrocarbon fuels. Specification 826,557 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4422/56A GB826558A (en) | 1956-02-13 | 1956-02-13 | Production of stable dimethylamine-borine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4422/56A GB826558A (en) | 1956-02-13 | 1956-02-13 | Production of stable dimethylamine-borine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB826558A true GB826558A (en) | 1960-01-13 |
Family
ID=9776888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4422/56A Expired GB826558A (en) | 1956-02-13 | 1956-02-13 | Production of stable dimethylamine-borine |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB826558A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5565615A (en) * | 1994-04-06 | 1996-10-15 | Bayer Aktiengesellschaft | Method of preparing dimethylamine-borane |
| CN112940022A (en) * | 2019-12-10 | 2021-06-11 | 威智医药有限公司 | Preparation method of dimethylamine borane |
-
1956
- 1956-02-13 GB GB4422/56A patent/GB826558A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5565615A (en) * | 1994-04-06 | 1996-10-15 | Bayer Aktiengesellschaft | Method of preparing dimethylamine-borane |
| CN112940022A (en) * | 2019-12-10 | 2021-06-11 | 威智医药有限公司 | Preparation method of dimethylamine borane |
| CN112940022B (en) * | 2019-12-10 | 2022-11-29 | 威智医药有限公司 | Preparation method of dimethylamine borane |
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