tert -butyl bromide
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | tert -butyl bromide | |||||||||||||||
other names |
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Molecular formula | C 4 H 9 Br | |||||||||||||||
Brief description |
colorless liquid with a characteristic odor |
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properties | ||||||||||||||||
Molar mass | 137.02 g mol −1 | |||||||||||||||
Physical state |
liquid |
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density |
1.2125 g cm −3 |
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Melting point |
−16.2 ° C |
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boiling point |
73.3 ° C |
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Vapor pressure |
179.9 mbar (25 ° C) |
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solubility |
practically insoluble in water (20 ° C) |
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Refractive index |
1.4279 (20 ° C, 589 nm) |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C |
tert -Butyl bromide is an organic compound with a bromine atom as a substituent and a tertiary carbon atom . As an alkyl bromide , thecompound isone of the halogenated hydrocarbons and is used, for example, as a starting material for synthesis. Isomers are 1-bromobutane , 2-bromobutane and 1-bromo-2-methylpropane , which together form the group of butyl bromides .
Extraction and presentation
One way of showing this is the reaction of tert- butanol with hydrogen bromide . Another is the reaction of isobutane with bromine.
properties
tert -Butyl bromide is a very volatile, colorless liquid with a characteristic odor, which is practically insoluble in water. It is rapidly hydrolyzed to tert -butanol and hydrogen bromide when mixed with water . If it is dissolved in methanol , it reacts quickly to form 2-methoxy-2-methylpropane (by solvolysis ) and 2-methylpropene . The technical product is stabilized with potassium carbonate .
Individual evidence
- ↑ a b c d e f g h i Entry on 2-bromo-2-methylpropane in the GESTIS substance database of the IFA , accessed on January 8, 2018(JavaScript required) .
- ↑ a b Data sheet 2-bromo-2-methylpropane (PDF) from Merck , accessed June 30, 2012.
- ↑ a b Joachim Buddrus, Bernd Schmidt: Fundamentals of organic chemistry . Walter de Gruyter, 2011, ISBN 3-11-024894-8 , p. 260 ( limited preview in Google Book Search).
- ↑ Uni-Tübingen: Halogenalkane ( Memento from June 26, 2013 in the Internet Archive ) (PDF file; 464 kB).