2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one

Modify Date: 2025-09-29 09:00:09

2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one Structure
2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one structure
 Common Name 2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one
CAS Number 78804-73-6 Molecular Weight 136.14800
Density 1.16g/cm3 Boiling Point 300.8ºC at 760 mmHg
Molecular Formula C8H8O2 Melting Point N/A
MSDS N/A Flash Point 122.5ºC

 Names

Name 3-methylidene-4,6a-dihydro-3aH-cyclopenta[b]furan-2-one
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.16g/cm3
Boiling Point 300.8ºC at 760 mmHg
Molecular Formula C8H8O2
Molecular Weight 136.14800
Flash Point 122.5ºC
Exact Mass 136.05200
PSA 26.30000
LogP 1.04410
Index of Refraction 1.534
InChIKey YJZSCBNXFHQEHK-UHFFFAOYSA-N
SMILES C=C1C(=O)OC2C=CCC12

 Synthetic Route

(3aR,6S,6aS)-6-iodo-3-methylenehexahydro-2H-cyclopenta[b]furan-2-one structure

(3aR,6S,6aS)-6-...

CAS#:78804-71-4

~85%

2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one Structure

2-methylidene-4...

CAS#:78804-73-6

Literature: Yu, Lin-Chen; Helquist, Paul Journal of Organic Chemistry, 1981 , vol. 46, # 22 p. 4536 - 4541
2-(cyclopent-2-enyl)acrylic acid structure

2-(cyclopent-2-...

CAS#:78804-69-0

~%

2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one Structure

2-methylidene-4...

CAS#:78804-73-6

Literature: Jabre-Truffert, Sylvaine; Waegell, Bernard Tetrahedron Letters, 1997 , vol. 38, # 5 p. 835 - 836
Cyclopentene,3-bromo-(7CI,9CI) structure

Cyclopentene,3-...

CAS#:36291-48-2

~%

2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one Structure

2-methylidene-4...

CAS#:78804-73-6

Literature: Jabre-Truffert, Sylvaine; Waegell, Bernard Tetrahedron Letters, 1997 , vol. 38, # 5 p. 835 - 836
N/A structure

N/A

CAS#:119946-65-5

~%

2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one Structure

2-methylidene-4...

CAS#:78804-73-6

Literature: Jabre-Truffert, Sylvaine; Waegell, Bernard Tetrahedron Letters, 1997 , vol. 38, # 5 p. 835 - 836
Cyclopentene structure

Cyclopentene

CAS#:142-29-0

~%

2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one Structure

2-methylidene-4...

CAS#:78804-73-6

Literature: Jabre-Truffert, Sylvaine; Waegell, Bernard Tetrahedron Letters, 1997 , vol. 38, # 5 p. 835 - 836
2-Cyclopentene-1-aceticacid, a-methylene-,methyl ester structure

2-Cyclopentene-...

CAS#:78804-67-8

~%

2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one Structure

2-methylidene-4...

CAS#:78804-73-6

Literature: Yu, Lin-Chen; Helquist, Paul Synthetic Communications, 1981 , vol. 11, # 7 p. 591 - 598
methyl 2-(cyclopent-2-en-1-yl)-3-(dimethylamino)propanoate structure

methyl 2-(cyclo...

CAS#:78804-63-4

~%

2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one Structure

2-methylidene-4...

CAS#:78804-73-6

Literature: Yu, Lin-Chen; Helquist, Paul Synthetic Communications, 1981 , vol. 11, # 7 p. 591 - 598
2-(cyclopent-2-en-1-yl)-3-methoxy-N,N,N-trimethyl-3-oxopropan-1-aminium iodide structure

2-(cyclopent-2-...

CAS#:78804-66-7

~%

2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one Structure

2-methylidene-4...

CAS#:78804-73-6

Literature: Yu, Lin-Chen; Helquist, Paul Synthetic Communications, 1981 , vol. 11, # 7 p. 591 - 598

 Synonyms

2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one
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Chemsrc provides CAS#:78804-73-6 MSDS, density, melting point, boiling point, structure, etc. Its name is 2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one>> amp version: 2-methylidene-4-oxabicyclo[3.3.0]oct-6-en-3-one

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