5-ethenylidenecyclopenta-1,3-diene

Modify Date: 2025-08-25 18:21:04

5-ethenylidenecyclopenta-1,3-diene Structure
5-ethenylidenecyclopenta-1,3-diene structure
 Common Name 5-ethenylidenecyclopenta-1,3-diene
CAS Number 27041-32-3 Molecular Weight 90.12250
Density 0.84g/cm3 Boiling Point 149.7ºC at 760mmHg
Molecular Formula C7H6 Melting Point N/A
MSDS N/A Flash Point 18ºC

 Names

Name 5-ethenylidenecyclopenta-1,3-diene
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.84g/cm3
Boiling Point 149.7ºC at 760mmHg
Molecular Formula C7H6
Molecular Weight 90.12250
Flash Point 18ºC
Exact Mass 90.04700
LogP 1.82370
Vapour Pressure 5.06mmHg at 25°C
Index of Refraction 1.508

 Synthetic Route

HOMOPHTHALIC ANHYDRIDE structure

HOMOPHTHALIC AN...

CAS#:703-59-3

~%

5-ethenylidenecyclopenta-1,3-diene Structure

5-ethenylidenec...

CAS#:27041-32-3

Literature: Spangler,R.J. et al. Journal of Organic Chemistry, 1977 , vol. 42, # 18 p. 2989 - 2996
N/A structure

N/A

CAS#:908094-04-2

~%

5-ethenylidenecyclopenta-1,3-diene Structure

5-ethenylidenec...

CAS#:27041-32-3

Literature: McMahon, Robert J.; Abelt, Christopher J.; Chapman, Orville L.; Johnson, Jeffery W.; Kreil, Curits L.; et al. Journal of the American Chemical Society, 1987 , vol. 109, # 8 p. 2456 - 2469
Bicyclo[2.2.1]hepta-2,5-dien-7-ol,7-acetate structure

Bicyclo[2.2.1]h...

CAS#:13426-49-8

~%

cyclohepta-1,2,4,6-tetraene structure

cyclohepta-1,2,...

CAS#:52783-93-4

5-ethenylidenecyclopenta-1,3-diene Structure

5-ethenylidenec...

CAS#:27041-32-3

acetic acid structure

acetic acid

CAS#:64-19-7

Literature: McMahon, Robert J.; Abelt, Christopher J.; Chapman, Orville L.; Johnson, Jeffery W.; Kreil, Curits L.; et al. Journal of the American Chemical Society, 1987 , vol. 109, # 8 p. 2456 - 2469
Spiro(bicyclo(2.2.1)hepta-2,5-dien-7,7'-(1,3,5)cycloheptatrien) structure

Spiro(bicyclo(2...

CAS#:96452-68-5

~14%

5-ethenylidenecyclopenta-1,3-diene Structure

5-ethenylidenec...

CAS#:27041-32-3

7-(2,4,6-cycloheptatrien-1-ylidene)-1,3,5-Cycloheptatriene structure

7-(2,4,6-cycloh...

CAS#:531-45-3

benzene structure

benzene

CAS#:71-43-2

Literature: Riemann, Achim; Hoffmann, Reinhard W.; Spanget-Larsen, Jens; Gleiter, Rolf Chemische Berichte, 1985 , vol. 118, # 3 p. 1000 - 1007
Bicyclo[2.2.1]hepta-2,5-dien-7-ol,7-acetate structure

Bicyclo[2.2.1]h...

CAS#:13426-49-8

~%

5-ethenylidenecyclopenta-1,3-diene Structure

5-ethenylidenec...

CAS#:27041-32-3

benzene structure

benzene

CAS#:71-43-2

Literature: McMahon, Robert J.; Abelt, Christopher J.; Chapman, Orville L.; Johnson, Jeffery W.; Kreil, Curits L.; et al. Journal of the American Chemical Society, 1987 , vol. 109, # 8 p. 2456 - 2469
5-Phenyl-1H-tetrazole structure

5-Phenyl-1H-tet...

CAS#:18039-42-4

~%

5-ethenylidenecyclopenta-1,3-diene Structure

5-ethenylidenec...

CAS#:27041-32-3

N-phenylcarbodiimide structure

N-phenylcarbodiimide

CAS#:29872-49-9

phenylcyanamide structure

phenylcyanamide

CAS#:622-34-4

Literature: Begue, Didier; Qiao, Greg Guanghua; Wentrup, Curt Journal of the American Chemical Society, 2012 , vol. 134, # 11 p. 5339 - 5350
Bicyclo[2.2.1]hepta-2,5-dien-7-ol,7-acetate structure

Bicyclo[2.2.1]h...

CAS#:13426-49-8

~19%

5-ethenylidenecyclopenta-1,3-diene Structure

5-ethenylidenec...

CAS#:27041-32-3

acetic acid structure

acetic acid

CAS#:64-19-7

Toluene structure

Toluene

CAS#:108-88-3

Detail
Literature: Hoffmann, Reinhard W.; Loof, Ingo H.; Wentrup, Curt Liebigs Annalen der Chemie, 1980 , # 8 p. 1198 - 1206

 Synonyms

1,3-Cyclopentadiene,5-ethenylidene
Fulvenallen
ethenylidenecyclopentadiene
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