3-BENZYLIDENE-2,4-PENTANEDIONE Chemical Properties

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)

Safety Information

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,

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

3-BENZYLIDENE-2,4-PENTANEDIONE Usage And Synthesis

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(4335-90-4)Related Product Information

• 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