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CAS No.: | 111-83-1 |
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Name: | 1-Bromooctane |
Article Data: | 154 |
Molecular Structure: | |
Formula: | C8H17Br |
Molecular Weight: | 193.127 |
Synonyms: | 1-Bromo Octane;1-Octylbromide;Octyl bromide;Octane, 1-bromo-;N-bromooctane; |
EINECS: | 203-912-9 |
Density: | 1.111 g/cm3 |
Melting Point: | -55 °C |
Boiling Point: | 200.9 °C at 760 mmHg |
Flash Point: | 78.3 °C |
Solubility: | insoluble |
Appearance: | clear colourless to yellow-brown liquid |
Hazard Symbols: | 36/37/38:; |
Risk Codes: | 36/37/38 |
Safety: | 23-24/25 |
PSA: | 0.00000 |
LogP: | 3.74180 |
Conditions | Yield |
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With dibromobis(cyclopentadienyl)titanium(IV); triisobutylaluminum; 1,2-dibromomethane In hexane at 20℃; for 24h; Reagent/catalyst; | 99% |
With hydrogen bromide; cetyltributylphosphonium bromide at 130℃; for 8.5h; | 86% |
With magnesium bromide In diethyl ether at 25℃; for 10h; | 41 % Chromat. |
With aluminum tri-bromide In chlorobenzene at 20℃; for 1h; |
Conditions | Yield |
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With carbon tetrabromide; polystyrene-supported triphenylphosphine In chloroform at 20℃; for 0.333333h; | 98% |
With sulfuric acid; hydrogen bromide In water at 60℃; Temperature; Flow reactor; Green chemistry; | 98% |
With 1-(2-OPPh2-propyl)-3-methylimidazolium hexafluorophosphate; bromine at 80℃; for 2h; | 96% |
C14H35N3PS(1+)
1-bromo-octane
Conditions | Yield |
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With bromide In N,N-dimethyl-formamide | 96% |
n-octyl methanesulfonate
1-bromo-octane
Conditions | Yield |
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With potassium bromide; O3Si(CH2)3P(C4H9)3Br; silica gel In carbon dioxide; water at 70℃; under 97509.8 Torr; for 5h; | 95% |
With potassium bromide; tributylphosphonium salts bonded to .. In water; toluene at 60℃; Rate constant; variation of catalists; | |
With 2-hexadecyl-1,3-bis-(1,4,7,10-tetraoxa-13-azacyclopentadecan-13-yl)propane; sodium bromide In toluene at 50℃; Rate constant; also with KBr; further phase-transfer catalysts; |
Conditions | Yield |
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With hydrogen bromide In hexane at 24.9℃; for 48h; Mechanism; Product distribution; other reagent concentrations and other reaction temperatures; | A 95% B 5% |
With borane; bromine; sodium methylate 1.) THF, 0 deg C, 2.) 0 deg C, 3.) MeOH, 0 deg C; Yield given. Multistep reaction; |
Conditions | Yield |
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With 1-n-butyl-3-methylimidazolim bromide at 50℃; for 5h; Inert atmosphere; Green chemistry; | 93% |
With lithium bromide |
methoxymethyl octyl ether
1-bromo-octane
Conditions | Yield |
---|---|
With phosphotungstic acid; tetrabutylammomium bromide at 130 - 142℃; for 0.0333333h; Microwave irradiation; Ionic liquid; chemoselective reaction; | 91% |
With tetrabutylammomium bromide; 1-(n-butyl)-3-methylimidazolium tetrachloroindate at 135 - 140℃; for 0.0666667h; Microwave irradiation; Neat (no solvent); chemoselective reaction; | 82% |
Conditions | Yield |
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With hydrogen bromide; phosphorus tribromide at 125℃; for 0.666667h; | 90% |
Conditions | Yield |
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With calcium bromide; tetrahexylammonium bromide at 110℃; for 24h; | 89% |
With pyridine; tributyltin bromide at 100℃; Thermodynamic data; Equilibrium constant; Δ G; | |
With lithium bromide; tetrahexylammonium bromide In water at 98℃; for 72h; various metal halide salts; bromine-chloride exchange; |
ethoxymethyl octyl ether
1-bromo-octane
Conditions | Yield |
---|---|
With phosphotungstic acid; tetrabutylammomium bromide at 130 - 142℃; for 0.0333333h; Microwave irradiation; Ionic liquid; chemoselective reaction; | 89% |
With tetrabutylammomium bromide; 1-(n-butyl)-3-methylimidazolium tetrachloroindate at 135 - 140℃; for 0.0666667h; Microwave irradiation; Neat (no solvent); chemoselective reaction; | 83% |
The IUPAC name of this chemical is 1-Bromooctane. With the CAS registry number 111-83-1 and EINECS registry number 203-912-9, it is also named as 2-Octyl bromide. In addition, the molecular formula is C8H17Br and the molecular weight is 193.12. It is a kind of clear colourless to yellow-brown liquid and belongs to the classes of Bromine Compounds; Alkyl Bromides; Monofunctional & alpha,omega-Bifunctional Alkanes; Monofunctional Alkanes; Bromine chemicals.
Physical properties about this chemical are: (1)ACD/LogP: 4.87; (2)ACD/LogD (pH 5.5): 4.87; (3)ACD/LogD (pH 7.4): 4.87; (4)ACD/BCF (pH 5.5): 2946.56; (5)ACD/BCF (pH 7.4): 2946.56; (6)ACD/KOC (pH 5.5): 10590.85; (7)ACD/KOC (pH 7.4): 10590.85; (8)#Freely Rotating Bonds: 6; (9)Polar Surface Area: 0 Å2; (10)Index of Refraction: 1.451; (11)Molar Refractivity: 46.84 cm3; (12)Molar Volume: 173.7 cm3; (13)Polarizability: 18.57 ×10-24cm3; (14)Surface Tension: 28.8 dyne/cm; (15)Density: 1.111 g/cm3; (16)Flash Point: 78.3 °C; (17)Enthalpy of Vaporization: 41.92 kJ/mol; (18)Boiling Point: 200.9 °C at 760 mmHg; (19)Vapour Pressure: 0.45 mmHg at 25°C.
Preparation of 1-Bromooctane: it can be prepared by octanol and hydrobromic acid. At first, use sulfuric acid to dissolve the sodium bromide. Then add octanol into the solution and heat it about 7-8 hours with refluxing. After the reaction, seperate the organic phase and wash it with water and concentrated sulfuric acid. You can get the product via drying and distillation. The yield is above 90%.
Uses of 1-Bromooctane: it can be used in organic synthesis.And it can react with quinolin-8-ol to get 8-octyloxy-quinoline. This reaction will need reagents KOH and 2 percent Aliquat. The reaction time is 2 hours at reaction temperature of 85 °C. The yield is about 90%.
When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes, respiratory system and skin. During using it, you should avoid contact with skin and eyes. And you should not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer).
You can still convert the following datas into molecular structure:
(1)SMILES: BrCCCCCCCC
(2)InChI: InChI=1/C8H17Br/c1-2-3-4-5-6-7-8-9/h2-8H2,1H3
(3)InChIKey: VMKOFRJSULQZRM-UHFFFAOYAC
The toxicity data is as follows:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
rabbit | LD50 | skin | 8mL/kg (8mL/kg) | American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969. | |
rat | LD50 | oral | 4490uL/kg (4.49mL/kg) | American Industrial Hygiene Association Journal. Vol. 30, Pg. 470, 1969. |