trans -2 heptene

Structural formula
General
Surname	trans -2 heptene
other names	trans -1-methyl-2-butylethene; trans -Hept-2-en; ( E ) -2-heptene;
Molecular formula	C 7 H 14
Brief description	colorless liquid
External identifiers / databases
ECHA InfoCard	100.035.192
PubChem	639662
Wikidata	Q27162283
properties
Molar mass	98.19 g mol −1
Physical state	liquid
density	0.7 g cm −3
Melting point	−109 ° C
boiling point	98 ° C
Vapor pressure	51.2 hPa (20 ° C)
solubility	practically insoluble in water (10 mg l −1 at 25 ° C); soluble in ethanol , acetone , benzene , carbon tetrachloride and chloroform ;
Refractive index	1.404 (20 ° C)
safety instructions
H and P phrases	H: 225-304-315-319-335
	P: 210-261-301 + 310-305 + 351 + 338-331
	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

trans -2-heptene is a chemical compound from the group of aliphatic , unsaturated hydrocarbons . It is isomeric to cis -2-heptene .

Occurrence

trans -2-heptene occurs in cigarette smoke and coal tar naphtha .

Extraction and presentation

trans -2-heptene can be obtained by reducing 1-heptine with calcium , but mainly n- heptane is formed.

properties

trans -2-heptene is a highly flammable, volatile, liquid that is practically insoluble in water. The substance can polymerise on contact with alkalis, radicals and polymerisation accelerators.

use

trans -2-heptene is used as an intermediate in organic syntheses.

safety instructions

The vapors of trans -2-heptene can form an explosive mixture with air ( flash point −1 ° C).

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k Entry on trans-2-heptene in the GESTIS substance database of the IFA , accessed on May 31, 2017(JavaScript required) .
↑ ^a ^b Data sheet trans-2-Heptene, 99% from Sigma-Aldrich , accessed on May 31, 2017 ( PDF ).
^ William M. Haynes: CRC Handbook of Chemistry and Physics, 97th Edition . CRC Press, 2016, ISBN 978-1-4987-5429-3 , pp. 290 ( limited preview in Google Book Search).
↑ Alan Rodgman, Thomas A. Perfetti: The Chemical Components of Tobacco and Tobacco Smoke, Second Edition . CRC Press, 2013, ISBN 978-1-4665-1548-2 , pp. 2158 ( limited preview in Google Book search).
↑ ^a ^b p Gangolli, Royal Society of Chemistry (Great Britain): The Dictionary of Substances and Their Effects: D . Royal Society of Chemistry, 1999, ISBN 978-0-85404-818-2 , pp. 579 ( limited preview in Google Book search).
^ Hisashi Yamamoto, Koichiro Oshima: Main Group Metals in Organic Synthesis . John Wiley & Sons, 2006, ISBN 978-3-527-60535-4 , pp. 165 ( limited preview in Google Book search).

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k Entry on trans-2-heptene in the GESTIS substance database of the IFA , accessed on May 31, 2017(JavaScript required) .

[Sigma-2] Data sheet trans-2-Heptene, 99% from Sigma-Aldrich , accessed on May 31, 2017 ( PDF ).

[William_M._Haynes-3] William M. Haynes: CRC Handbook of Chemistry and Physics, 97th Edition . CRC Press, 2016, ISBN 978-1-4987-5429-3 , pp. 290 ( limited preview in Google Book Search).

[Alan_Rodgman,_Thomas_A._Perfetti-4] Alan Rodgman, Thomas A. Perfetti: The Chemical Components of Tobacco and Tobacco Smoke, Second Edition . CRC Press, 2013, ISBN 978-1-4665-1548-2 , pp. 2158 ( limited preview in Google Book search).

[S._Gangolli,_Royal_Society_of_Chemistry_(Great_Britain)-5] Gangolli, Royal Society of Chemistry (Great Britain): The Dictionary of Substances and Their Effects: D . Royal Society of Chemistry, 1999, ISBN 978-0-85404-818-2 , pp. 579 ( limited preview in Google Book search).

[Hisashi_Yamamoto,_Koichiro_Oshima-6] Hisashi Yamamoto, Koichiro Oshima: Main Group Metals in Organic Synthesis . John Wiley & Sons, 2006, ISBN 978-3-527-60535-4 , pp. 165 ( limited preview in Google Book search).