3-Methyl-2-buten-1-ol Chemical Properties

Melting point:

43.52°C

Boiling point:

140 °C(lit.)

Density 

0.848 g/mL at 25 °C(lit.)

vapor pressure 

1.4 mm Hg ( 20 °C)

refractive index 

n20/D 1.443(lit.)

FEMA 

3647 | 3-METHYL-2-BUTEN-1-OL

Flash point:

110 °F

storage temp. 

Sealed in dry,2-8°C

solubility 

64g/l

form 

Liquid

pka

14.83±0.10(Predicted)

color 

Clear colorless to very slightly yellow

Odor

at 100.00 %. fruity green lavender

Odor Type

fruity

explosive limit

2.7-16.3%(V)

Water Solubility 

170 g/L (20 ºC)

JECFA Number

1200

BRN 

1633479

InChIKey

ASUAYTHWZCLXAN-UHFFFAOYSA-N

LogP

1.24

CAS DataBase Reference

556-82-1(CAS DataBase Reference)

NIST Chemistry Reference

2-Buten-1-ol, 3-methyl-(556-82-1)

EPA Substance Registry System

2-Buten-1-ol, 3-methyl- (556-82-1)

Safety Information

Hazard Codes 

Xn

Risk Statements 

10-22-36/37/38-38-21/22

Safety Statements 

26-36-37-23-16

RIDADR 

UN 1987 3/PG 3

WGK Germany 

1

RTECS 

EM9472500

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29052990

MSDS

• Language:English Provider:Prenyl alcohol
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

3-Methyl-2-buten-1-ol Usage And Synthesis

Description

3-Methyl-2-buten-l-ol has a phenolic, metallic odor bearing a resemblance to iron gallate ink. May be synthesized from isoprene by hydration via prenyl acetate or by rearrangement of 3-methyll-buten-3-ol.

Chemical Properties

3-Methyl-2-buten-1-ol has a phenolic, metallic odor bearing a resemblance to iron gallate ink

Chemical Properties

clear colourless to very slightly yellow liquid

Uses

3-Methyl-2-buten-1-ol is used as a reagent for protection of carboxylic acids as their 3-methyl-2-buten-1-yl (Prenyl) esters. It is also used in perfumery.

Uses

3-Methyl-2-buten-1-ol was used as starting reagent during asymmetric total syntheses of (R)-(+)- and (S)-(-)-umbelactone via Sharpless asymmetric epoxidation reaction.

Definition

ChEBI: Prenol is an alkenyl alcohol and a member of prenols.

General Description

3-Methyl-2-buten-1-ol reacts with nitrosocarbonyl benzene to yield 5-hydroxy-isoxazolidines. It is commonly used as fragrance ingredient.

Flammability and Explosibility

Flammable

Synthesis

Prenol's two synthesis methods: 1) from Isoprene by hydration via Phenylacetate. 2) from Dimethyl vinylcarbinol with diluted Sulfuric acid.

3-Methyl-2-buten-1-ol(556-82-1)Related Product Information

• Phenethyl alcohol
• 2,2,6,6-Tetramethyl-4-piperidinol
• 3-Methyl butynol
• Tiglic aldehyde
• Ethyl acetate
• 2-Methyl-1-buten-4-ol,METHYL-3-BUTEN-1-OL, 3-,3-METHYL-3-BUTEN-1-OL,METHYL-3-BUTEN-3-OL-1,3-METHYL-3-BUTEN-1-OL 97+%
• METHYL THIOPHENE-2-CARBOXYLATE
• Methyl acrylate
• Polybutene
• Kresoxim-methyl
• Methylparaben
• Methyl cyclopentenolone
• Bensulfuron methyl
• CIS-BUTENEDIOIC ANHYDRIDE
• Thiophanate-methyl
• 3-Methyl-1-butanethiol
• Isovaleric acid
• Potassium 2-ethylhexanoate