1,4-dibromobutane

Structural formula
General
Surname	1,4-dibromobutane
Molecular formula	C 4 H 8 Br 2
Brief description	colorless liquid with an ester-like odor
External identifiers / databases
CAS number 110-52-1 EC number 203-775-5 ECHA InfoCard 100.003.433 PubChem 8056 Wikidata Q161522
properties
Molar mass	215.93 g mol −1
Physical state	liquid
density	1.83 g cm −3
Melting point	−20 ° C
boiling point	198 ° C
Vapor pressure	1.63 h Pa (25 ° C)
solubility	Practically insoluble in water
Refractive index	1.519 (20 ° C)
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 315-319 P: 280-302 + 352-305 + 351 + 338
Thermodynamic properties
ΔH f 0	−140.3 kJ / mol
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

1,4-Dibromobutane is a chemical compound from the group of aliphatic , saturated halogenated hydrocarbons . 1,4-Dibromobutane shows similar reactions to the monobrominated 1-bromobutane , but in contrast to this it is functionalized twice .

Extraction and presentation

One way of preparing 1,4-dibromobutane is the double bromination of 1,4-butanediol .

use

It can be used for the alkylation , for example of organolithium compounds , or used for the production of Grignard compounds .

Isomers

• 1,2-dibromobutane
• 1,3-dibromobutane
• 2,3-dibromobutane

Individual evidence

1. ↑ ^{a b c d e f g h} Entry on 1,4-dibromobutane in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
2. ↑ Data sheet 1,4-Dibromobutane, 99% from Sigma-Aldrich , accessed on November 1, 2012 ( PDF ).
3. ↑ 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. 5-26.
4. ↑ Gerhard G. Habermehl, Peter E. Hammann, Hans C. Krebs and W. Ternes: Naturstoffchemie - An Introduction , Springer, 2008, ISBN 3-540-73732-4 , p. 130.