3-Butyn-2-one Chemical Properties

Boiling point:

85 °C(lit.)

Density 

0.87 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.406(lit.)

Flash point:

28 °F

storage temp. 

0-6°C

form 

Liquid

Specific Gravity

0.870

color 

Clear yellow to orange-brown

Water Solubility 

It is soluble in water.

BRN 

605353

CAS DataBase Reference

1423-60-5(CAS DataBase Reference)

NIST Chemistry Reference

3-Butyn-2-one(1423-60-5)

EPA Substance Registry System

3-Butyn-2-one (1423-60-5)

Safety Information

Hazard Codes 

F,T+,T,Xi,E,Xn

Risk Statements 

28-36/37/38-11-15-10

Safety Statements 

45-36/37/39-28A-26-16-43-7/8-7/9-24/25

RIDADR 

UN 1992 3/PG 2

WGK Germany 

3

RTECS 

ES0875000

F 

19

Hazard Note 

Highly Flammable/Highly Toxic

HazardClass 

3

PackingGroup 

II

HS Code 

29141900

MSDS

• Language:English Provider:3-Butyn-2-one
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3-Butyn-2-one Usage And Synthesis

Chemical Properties

clear yellow to orange-brown liquid

Chemical Properties

3-Butyn-2-one is a clear, colorless liquid that is chemically reactive. It has a boiling point of 85.0°C. The autoignition temperature for 3-butyn-2-one is 274°C. 3-Butyn-2-one has a penetrating odor and is a lacrimator. 3-Butyn-2-one has a penetrating odor and is a lacrimator.

Uses

3-Butyn-2-one was used in the synthesis of clerodane diterpenoid (+/-)-sacacarin. It was used as substrate in stereoselective, conjugate arylation mediated by gallium(III) chloride leading to (E)-α,β-unsaturated ketones.

Definition

ChEBI: Butyn-2-one is a methyl ketone and a terminal acetylenic compound. It is functionally related to a butan-2-one.

General Description

3-Butyn-2-one undergoes asymmetric double-Michael reaction with ortho-tosylamidophenyl malonate catalyzed by chiral aminophosphines to yield indolines. It undergoes double Michael reaction with nitrogen-containing tethered diacid to give pipecolic acid derivatives.

3-Butyn-2-one(1423-60-5)Related Product Information

• 2-Butanone oxime
• 4-Methyl-2-pentanone
• Methyltris(methylethylketoxime)silane
• 3-HEXYN-2-ONE
• 2-Butanone
• 4-(TRIMETHYLSILYL)-3-BUTYN-2-ONE 98%,4-(Trimethysilyl)-3-butyn-2-one,4-TRIMETHYLSILYL-3-BUTYN-2-ONE
• 4-PHENYL-3-BUTYN-2-ONE 97+%,1-Phenyl-1-butyn-3-one,3-Butyn-2-one, 4-phenyl-,4-PHENYL-3-BUTYN-2-ONE
• 4-(Dimethylphenylsilyl)-3-butyn-2-one
• 1,5-DI-TERT-BUTYL-1,4-PENTADIYN-3-ONE
• DIPHENYLPROPYNONE
• 3-PHENYL-1-P-TOLYL-PROPYNONE
• 1-Phenyl-2-butyn-1-one
• 3-Butyn-2-one, 4-(1-methyl-1H-pyrrol-2-yl)- (9CI)
• 3-Butyn-2-one,4-(4-fluorophenyl)-(9CI)
• 3-Butyn-2-one
• 3-HEPTYN-2-ONE
• 3-(1-METHOXY-CYCLOHEXYL)-1-PHENYL-PROPYNONE
• 1-(4-NITRO-PHENYL)-3-PHENYL-PROPYNONE