1,2-dibromopropane
Structural formula | |||||||||||||||||||
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Structural formula without stereochemistry | |||||||||||||||||||
General | |||||||||||||||||||
Surname | 1,2-dibromopropane | ||||||||||||||||||
other names |
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Molecular formula | C 3 H 6 Br 2 | ||||||||||||||||||
Brief description |
light yellow liquid |
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properties | |||||||||||||||||||
Molar mass | 201.89 g · mol -1 | ||||||||||||||||||
Physical state |
liquid |
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density |
1.93 g cm −3 |
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Melting point |
−55.49 ° C |
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boiling point |
141.9 ° C |
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Vapor pressure |
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solubility |
poor in water (1.43 g l −1 at 20 ° C) |
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Refractive index |
1.5201 (20 ° C) |
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safety instructions | |||||||||||||||||||
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Thermodynamic properties | |||||||||||||||||||
ΔH f 0 |
−113.6 kJ / mol |
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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 |
1,2-Dibromopropane is an organic chemical compound. It is an aliphatic and the simplest chiral hydrocarbon compound that contains bromine .
Extraction and presentation
1,2-Dibromopropane is formed when propene reacts with bromine :
This is an addition reaction in which racemic 1,2-dibromopropane is formed.
properties
1,2-Dibromopropane is a flammable, volatile, light yellow liquid that is sparingly soluble in water. It has a refractive index of 1.5201 (20 ° C)
Stereoisomerism
1,2-Dibromopropane has a stereocenter , so there are two enantiomers, ( S ) -1,2-Dibromopropane and ( R ) -1,2-Dibromopropane.
If 1,2-dibromopropane is spoken of without further prefixes , the racemate is usually [( RS ) -1,2-dibromopropane] - a 1: 1 mixture of ( S ) -1,2-dibromopropane and ( R ) -1 , 2-dibromopropane - meant.
use
1,2-Dibromopropane is an intermediate for the synthesis of drugs and other organic compounds. It is also used as a solvent .
safety instructions
The vapors of 1,2-dibromopropane can form an explosive mixture with air ( flash point 35 ° C).
Related links
- 1,1-dibromopropane C 3 H 6 Br 2 (CAS number: 598-17-4)
- 1,3-dibromopropane C 3 H 6 Br 2
- 2,2-dibromopropane C 3 H 6 Br 2 (CAS number: 594-16-1)
- 1,2-dibromoethane C 2 H 4 Br 2
Individual evidence
- ↑ a b c d e f g h i j k Entry on 1,2-dibromopropane in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .
- ↑ a b David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-146.
- ↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Standard Thermodynamic Properties of Chemical Substances, pp. 5-24.