3-Butyn-2-one Property

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

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

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H300Fatal if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

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.

3-Butyn-2-one Chemical Properties,Usage,Production

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.