493023

3-Methyl-1-penten-4-yn-3-ol

98%

• Synonym(s): Ethynyl methyl vinyl carbinol
• Linear Formula: HC≡CC(CH₃)(OH)CH=CH₂
• CAS Number: 3230-69-1
• Molecular Weight: 96.13
• EC Number: 221-770-6
• MDL number: MFCD01709006
• UNSPSC Code: 12352100
• PubChem Substance ID: 24872796
• NACRES: NA.22

Properties

• Assay: 98%
• refractive index: n20/D 1.446 (lit.)
• bp: 63-65 °C/100 mmHg (lit.)
• density: 0.89 g/mL at 25 °C (lit.)
• SMILES string: CC(O)(C=C)C#C
• InChI: 1S/C6H8O/c1-4-6(3,7)5-2/h1,5,7H,2H2,3H3
• InChI key: VBATUBQIYXCZPA-UHFFFAOYSA-N

Description

General description

3-Methyl-1-penten-4-yn-3-ol is an acetylenic alcohol. It reacts with ruthenium vinyl carbene to form a ten-membered η²-olefin coordinated ruthenacycle. The efficiency of different palladium catalysts for the hydrogenation of 3-methyl-1-penten-4-yn-3-ol under continuous-flow liquid-phase conditions has been evaluated. It undergoes allylic rearrangement to form cis and trans isomers of 3-methyl-2-penten-4-yn-l-ol.

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Warning
• Hazard Statements: H226,H302
• Precautionary Statements: P210 - P233 - P240 - P241 - P242 - P301 + P312
• Hazard Classifications: Acute Tox. 4 Oral - Flam. Liq. 3
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 1
• Flash Point(F): 90.0 °F - closed cup
• Flash Point(C): 32.2 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves