1,7-dibromoheptane

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Structural formula
Structural formula of 1,7-dibromoheptane
General
Surname 1,7-dibromoheptane
other names

Heptamethylene dibromide

Molecular formula C 7 H 14 Br 2
Brief description

light yellow liquid

External identifiers / databases
CAS number 4549-31-9
ECHA InfoCard 100.022.647
PubChem 78309
Wikidata Q57985148
properties
Molar mass 257.99 g mol −1
Physical state

liquid

density

1.51 g cm −3 (25 ° C)

Melting point

−41.7 ° C

boiling point

255 ° C

solubility
Refractive index

1.503 (20 ° C)

safety instructions
GHS labeling of hazardous substances
06 - Toxic or very toxic

danger

H and P phrases H: 300
P: 264-301 + 310
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

1,7-Dibromoheptane is a chemical compound from the group of aliphatic , saturated halogenated hydrocarbons .

Extraction and presentation

1,7-Dibromoheptane can be obtained by reacting 1,7-heptanediol with hydrobromic acid. However, other brominating agents such as phosphorus tribromide , sodium bromide , n-bromosuccinimide (NBS), dimethylbromosulfonium bromide (DMBS) or ionic liquids containing bromine can also be used.

properties

1,7-Dibromoheptane is a light yellow liquid that is practically insoluble in water.

use

1,7-Dibromoheptane is considered to be used in the manufacture of liquid crystals and other chemical compounds.

Individual evidence

  1. ↑ a b c d e f g h i data sheet 1,7-dibromoheptane, 97% from Sigma-Aldrich , accessed on October 30, 2018 ( PDF ).
  2. ↑ a b c d David R. Lide: CRC Handbook of Chemistry and Physics A Ready-reference Book of Chemical and Physical Data . CRC Press, 1995, ISBN 978-0-8493-0595-5 , pp. 158 ( limited preview in Google Book search).
  3. ^ A b Asian Journal of Chemistry Vol. 22, No. 9 (2010), 6945-6954, Hua Li, Jiang Zhu and Juan Liu: Mechanism and Kinetics of the Synthesis of 1,7-Dibromoheptane
  4. ↑ Hua Li, Juan Liu, Jiang Zhu, Hongkai Wang: Preparation of Novel Ionic Liquids and Their Applications in Brominating Reaction. In: Journal of the Korean Chemical Society. 55, 2011, p. 685, doi : 10.5012 / jkcs.2011.55.4.685 .
  5. ↑ Bill M. Culbertson, James E. McGrath: Advances in Polymer Synthesis . Springer Science & Business Media, 2012, ISBN 978-1-4613-2121-7 , pp. 138 ( limited preview in Google Book search).