162353

3-Methyl-2-buten-1-ol

99%

• Synonym(s): 3,3-Dimethylallyl alcohol, Prenol
• Linear Formula: (CH₃)₂C=CHCH₂OH
• CAS Number: 556-82-1
• Molecular Weight: 86.13
• Beilstein/REAXYS Number: 1633479
• EC Number: 209-141-4
• MDL number: MFCD00002916
• UNSPSC Code: 12352100
• eCl@ss: 39020334
• PubChem Substance ID: 24849980
• NACRES: NA.22

Properties

• vapor pressure: 1.4 mmHg ( 20 °C)
• Quality Level: 100
• assay: 99%
• form: liquid
• expl. lim.: 16.3 %
• refractive index: n20/D 1.443 (lit.)
• bp: 140 °C (lit.)
• density: 0.848 g/mL at 25 °C (lit.)
• functional group: hydroxyl
• SMILES string: C\C(C)=C\CO
• InChI: 1S/C5H10O/c1-5(2)3-4-6/h3,6H,4H2,1-2H3
• InChI key: ASUAYTHWZCLXAN-UHFFFAOYSA-N

Description

General description

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

Application

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.

Safety Information

• pictograms: GHS02,GHS05,GHS07
• signalword: Danger
• hcodes: H226,H302 + H332,H314,H335
• pcodes: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 1
• flash_point_f: 124.7 °F - closed cup
• flash_point_c: 51.5 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter