ChemicalBook > CAS DataBase List > 3-BENZYLIDENE-2,4-PENTANEDIONE

3-BENZYLIDENE-2,4-PENTANEDIONE

Product Name
3-BENZYLIDENE-2,4-PENTANEDIONE
CAS No.
4335-90-4
Chemical Name
3-BENZYLIDENE-2,4-PENTANEDIONE
Synonyms
Benzalacetylacetone;Benzylidene acetylacetone;(2,2-diacetylvinyl)benzene;3-Benzylideneacetylacetone;3-benzylidene-4-pentanedione;(2-benzylidene)acetylacetone;1,1-Diacetyl-2-phenylethylene;3-Benzylidine-2,4-pentanedione;3-BENZYLIDENE-2,4-PENTANEDIONE;3-Benzylidenepentane-2,4-Dione
CBNumber
CB5697560
Molecular Formula
C12H12O2
Formula Weight
188.22
MOL File
4335-90-4.mol
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3-BENZYLIDENE-2,4-PENTANEDIONE Property

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.)
Flash point:
>230 °F
form 
liquid
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)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
RTECS 
SA1930000
TSCA 
Yes
HS Code 
2914390090
Toxicity
mouse,LD50,intravenous,56mg/kg (56mg/kg),U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. Vol. NX#08898,
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
S620335
Product name
3-BENZYLIDENE-2,4-PENTANEDIONE
Purity
Aldrich
Packaging
250mg
Price
$29.8
Updated
2024/03/01
Sigma-Aldrich
Product number
544418
Product name
3-Benzylidene-2,4-pentanedione
Purity
97%
Packaging
5g
Price
$52.8
Updated
2023/06/20
Alfa Aesar
Product number
L00623
Product name
3-Benzylidene-2,4-pentanedione, 97%
Packaging
5g
Price
$32.65
Updated
2024/03/01
Alfa Aesar
Product number
L00623
Product name
3-Benzylidene-2,4-pentanedione, 97%
Packaging
25g
Price
$103.65
Updated
2024/03/01
American Custom Chemicals Corporation
Product number
CHM0010306
Product name
3-BENZYLIDENE-2,4-PENTANEDIONE
Purity
95.00%
Packaging
5G
Price
$831.95
Updated
2021/12/16
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3-BENZYLIDENE-2,4-PENTANEDIONE Chemical Properties,Usage,Production

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.

3-BENZYLIDENE-2,4-PENTANEDIONE Preparation Products And Raw materials

Raw materials

Preparation Products

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3-BENZYLIDENE-2,4-PENTANEDIONE Suppliers

China 27 Germany 2 India 3 Japan 1 Switzerland 1 United Kingdom 6 United States 9 Global 49
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4335-90-4, 3-BENZYLIDENE-2,4-PENTANEDIONERelated Search:

3-BENZYLIDENE-2,4-PENTANEDIONE BINDONE 2-(1-NAPHTHYLMETHYLENE)-1H-INDENE-1,3(2H)-DIONE 2-((4-CHLOROPHENYL)METHYLENE)INDANE-1,3-DIONE 2-(BENZO[3,4-D]1,3-DIOXOLEN-5-YLMETHYLENE)INDANE-1,3-DIONE 2-(PHENYL((4-(TRIFLUOROMETHOXY)PHENYL)AMINO)METHYLENE)INDANE-1,3-DIONE 2-(((2-(3,4-DIMETHOXYPHENYL)ETHYL)AMINO)(4-METHOXYPHENYL)METHYLENE)INDANE-1,3-DIONE 3-(1,3-BENZODIOXOL-5-YLMETHYLENE)-2,4-PENTANEDIONE 2-((6-NITROBENZO[3,4-D]1,3-DIOXOLEN-5-YL)METHYLENE)INDANE-1,3-DIONE 2-((4-(ISOPROPYL)PHENYL)METHYLENE)INDANE-1,3-DIONE 2-(PHENYL(2-PHENYLHYDRAZINO)METHYLENE)INDANE-1,3-DIONE 2-(PHENYLMETHYLENE)-1H-INDENE-1,3(2H)-DIONE 2-((4,5-DIMETHOXY-2-NITROPHENYL)METHYLENE)INDANE-1,3-DIONE 2-(2-HYDROXYBENZYLIDENE)INDANE-1,3-DIONE 2-((3-PHENOXYPHENYL)METHYLENE)INDANE-1,3-DIONE 2-((4-TRIFLUOROMETHOXYPHENYL)METHYLENE)INDANE-1,3-DIONE 2-(((2-(3,4-DIMETHOXYPHENYL)ETHYL)AMINO)PHENYLMETHYLENE)INDANE-1,3-DIONE 2-((2-NITROPHENYL)METHYLENE)INDANE-1,3-DIONE

  • 3-(phenylmethylidene)pentane-2,4-dione
  • 3-Benzylidenepentane-2,4-Dione
  • 3-BENZYLIDENE-2,4-PENTANEDIONE
  • 3-Benzylidine-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-(phenylmethylene)pentane-2,4-dione
  • (2-benzylidene)acetylacetone
  • 3-acetyl-4-phenyl-3-buten-2-one
  • 3-Acetyl-4-phenyl-3-buten-2-one~(2-Benzylidene)acetylacetone
  • 4335-90-4
  • CH3COCCHC6H5COCH3
  • C6H5CHCHCOCH2COCH3
  • Carbonyl Compounds
  • C11 to C12
  • Building Blocks
  • Ketones
  • Organic Building Blocks
  • Carbonyl Compounds
  • Chemical Synthesis
  • Organic Building Blocks
  • C11 to C12
  • Building Blocks
  • C11 to C12
  • Carbonyl Compounds
  • Ketones