ChemicalBook--->CAS DataBase List--->4335-90-4

4335-90-4

4335-90-4 Structure

4335-90-4 Structure
IdentificationMore
[Name]

3-BENZYLIDENE-2,4-PENTANEDIONE
[CAS]

4335-90-4
[Synonyms]

3-BENZYLIDENE-2,4-PENTANEDIONE
(2,2-diacetylvinyl)benzene
1,1-Diacetyl-2-phenylethylene
2,4-Pentanedione, 3-(phenylmethylene)-
2,4-Pentanedione, 3-benzylidene-
2-Acetyl-1-phenyl but-1-en-3-one
3-(phenylmethylene)-4-pentanedione
3-benzylidene-4-pentanedione
3-Benzylideneacetylacetone
Benzalacetylacetone
Benzylidene acetylacetone
3-Acetyl-4-phenyl-3-buten-2-one~(2-Benzylidene)acetylacetone
3-(phenylmethylene)pentane-2,4-dione
(2-benzylidene)acetylacetone
3-acetyl-4-phenyl-3-buten-2-one
3-Benzylidenepentane-2,4-Dione
[EINECS(EC#)]

224-382-5
[Molecular Formula]

C12H12O2
[MDL Number]

MFCD00014990
[Molecular Weight]

188.22
[MOL File]

4335-90-4.mol
Chemical PropertiesBack Directory
[Melting point ]

169 °C
[Boiling point ]

185-188 °C/15 mmHg (lit.)
[density ]

1.081 g/mL at 25 °C(lit.)
[refractive index ]

n20/D 1.583(lit.)
[Fp ]

>230 °F
[Specific Gravity]

1.081
[BRN ]

972849
[CAS DataBase Reference]

4335-90-4(CAS DataBase Reference)
[EPA Substance Registry System]

2,4-Pentanedione, 3-(phenylmethylene)- (4335-90-4)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
[WGK Germany ]

3
[RTECS ]

SA1930000
[TSCA ]

Yes
Hazard InformationBack Directory
[Uses]

3-Benzylidene-2,4-pentanedione may be used in the preparation of:
  • Five membered cyclic oxyphosphoranes by reacting with phosphonite esters.
  • 5-Hydroxy-N-substituted-2H-pyrrol-2-ones by reacting with alkyl isocyanides.
  • 3-Benzylidene-2,4-bis (trimethylsilyloxy)-1,4-pentadiene via trimethylsilylation.

[Synthesis Reference(s)]

Synthetic Communications, 26, p. 3025, 1996 DOI: 10.1080/00397919608004607
[General Description]

3-Benzylidene-2,4-pentanedione (BPD) can be prepared by reacting benzaldehyde with 2,4-pentanedione in the presence of a base.
Spectrum DetailBack Directory
[Spectrum Detail]

3-BENZYLIDENE-2,4-PENTANEDIONE(4335-90-4)IR
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

3-Benzylidene-2,4-pentanedione, 97%(4335-90-4)
[Sigma Aldrich]

4335-90-4(sigmaaldrich)
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