2,3-dimethyl-2-butene

Structural formula
General
Surname	2,3-dimethyl-2-butene
other names	Tetramethylethylene
Molecular formula	C 6 H 12
Brief description	colorless liquid with a mild odor
External identifiers / databases
EC number	209-263-8
ECHA InfoCard	100.008.422
PubChem	11250
Wikidata	Q55461790
properties
Molar mass	84.16 g mol −1
Physical state	liquid
density	0.71 g cm −3
Melting point	−74 ° C
boiling point	73 ° C
Vapor pressure	133 hPa (20 ° C)
solubility	practically insoluble in water (0.071 g l −1 at 25 ° C)
Refractive index	1.412 (20 ° C)
safety instructions
H and P phrases	H: 225-304
	P: 210-301 + 310-331
	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

2,3-Dimethyl-2-butene is a chemical compound from the group of aliphatic , unsaturated hydrocarbons .

Extraction and presentation

2,3-dimethyl-2-butene can be prepared by dehydrogenation of 3,3-dimethyl-2-butanol can be obtained.

properties

2,3-Dimethyl-2-butene is a highly flammable, volatile, colorless liquid with a mild odor, which is practically insoluble in water.

use

2,3-Dimethyl-2-butene is used as an intermediate in the manufacture of other chemical compounds (e.g. pharmaceuticals). The ozonolysis of pure 2,3-dimethyl-2-butene yields Tetramethylenepoxid as a product.

safety instructions

The vapors of 2,3-dimethyl-2-butene can form an explosive mixture with air ( flash point <−20 ° C, ignition temperature 400 ° C).

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k Entry on 2,3-dimethyl-2-butene in the GESTIS substance database of the IFA , accessed on July 11, 2018(JavaScript required) .
↑ Data sheet 2,3-dimethyl-2-butene, ≥99% from Sigma-Aldrich , accessed on July 11, 2018 ( PDF ).
^ Richard OC Norman, James M. Coxon: Principles of Organic Synthesis, 3rd Edition . CRC Press, 1993, ISBN 978-0-7487-6162-3 , pp. 456 ( limited preview in Google Book search).
↑ William H. Brown, Christopher S. Foote, Brent L. Iverson, Eric Anslyn: Organic Chemistry . Cengage Learning, 2011, ISBN 978-0-8400-5498-2 ( limited preview in Google Book Search).
↑ Data sheet Tetramethylethylene, 97% at AlfaAesar, accessed on July 11, 2018 ( PDF )(JavaScript required) .
^ Robert W. Murray, Wei Kong, Shirish N. Rajadhyaksha: The ozonolysis of tetramethylethylene. Concentration and temperature effects. In: The Journal of Organic Chemistry. 58, 1993, p. 315, doi : 10.1021 / jo00054a010 .

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k Entry on 2,3-dimethyl-2-butene in the GESTIS substance database of the IFA , accessed on July 11, 2018(JavaScript required) .

[Sigma-2] Data sheet 2,3-dimethyl-2-butene, ≥99% from Sigma-Aldrich , accessed on July 11, 2018 ( PDF ).

[Richard_O.C._Norman,_James_M._Coxon-3] Richard OC Norman, James M. Coxon: Principles of Organic Synthesis, 3rd Edition . CRC Press, 1993, ISBN 978-0-7487-6162-3 , pp. 456 ( limited preview in Google Book search).

[William_H._Brown,_Christopher_S._Foote,_Brent_L._Iverson,_Eric_Anslyn-4] William H. Brown, Christopher S. Foote, Brent L. Iverson, Eric Anslyn: Organic Chemistry . Cengage Learning, 2011, ISBN 978-0-8400-5498-2 ( limited preview in Google Book Search).

[Alfa-5] Data sheet Tetramethylethylene, 97% at AlfaAesar, accessed on July 11, 2018 ( PDF )(JavaScript required) .

[DOI10.1021/jo00054a010-6] Robert W. Murray, Wei Kong, Shirish N. Rajadhyaksha: The ozonolysis of tetramethylethylene. Concentration and temperature effects. In: The Journal of Organic Chemistry. 58, 1993, p. 315, doi : 10.1021 / jo00054a010 .