3-Methyl-2-penten-4-yn-1-ol

Product Name: 3-Methyl-2-penten-4-yn-1-ol
CAS No.: 105-29-3
Chemical Name: 3-Methyl-2-penten-4-yn-1-ol
Synonyms: 1-Pentol;3-Methylpenten-2-in-4-ol-1;3-methyl-2-penten-4-yn-1-o;3-methylpent-2-en-4-yn-1-ol;3-Methyl-2-penten-4-yn-1-ol;2-Penten-4-yn-1-ol,3-methyl-;1-Hydroxy-3-methyl-2-penten-4-yne
CBNumber: CB5851933
Molecular Formula: C6H8O
Formula Weight: 96.13
MOL File: 105-29-3.mol

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3-Methyl-2-penten-4-yn-1-ol Property

Melting point:: 25°C
Boiling point:: 144.66°C (rough estimate)
Density: 0.9253 (estimate)
refractive index: 1.4460 (estimate)
pka: 14.22±0.10(Predicted)
EPA Substance Registry System: 2-Penten-4-yn-1-ol, 3-methyl- (105-29-3)

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Safety

RIDADR: 2705
HazardClass: 8
PackingGroup: II

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Hazard and Precautionary Statements (GHS)

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3-Methyl-2-penten-4-yn-1-ol Chemical Properties,Usage,Production

Description

3-Methyl-2-penten-4-yn-1-ol, also known as C6 alcohol or 3-methylpent-2-en-4-yn-1-ol, is a derivative of methyl vinyl ketone and acetylene. (Z)-3-Methyl-2-penten-4-yn-1-ol is a pharmaceutical intermediate for the production of vitamin A. Its stereoisomer, (Z)-3-methyl-2-penten-4-yn-1-ol, is also a useful intermediate for the manufacture of astaxanthin, zeaxanthin and further carotenoids.

Chemical Properties

3-Methyl-2-penten-4-yn-1-ol has cis and trans isomers. E type: oily liquid, boiling point 165-167℃, relative density 0.922, refractive index 1.4850, flash point 65℃; Z type: oily liquid, boiling point 89-92℃/4kPa, relative density 0.897, refractive index 1.4930, flash point 75 °C. Both isomers are easy to polymerize, and they will explode when heated to above 120°C in a sealed tube.

Uses

Used as intermediate of vitamin A acetate.

Synthesis

3-Methyl-2-penten-4-yn-1-ol is synthesized by allyl rearrangement fo methyl vinyl ethynyl methanol at 80°C under moderate acid.

3-Methyl-2-penten-4-yn-1-ol Preparation Products And Raw materials

Raw materials

1-BUTEN-3-YNE PROPYLENE Propargyl alcohol

Preparation Products

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3-Methyl-2-penten-4-yn-1-ol Suppliers

China 7 United States 2 Global 9

Shanghai ChuCheng Trade Co., Ltd.

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Shaanxi Xihua Chemical Industry Co., Ltd

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105-29-3, 3-Methyl-2-penten-4-yn-1-olRelated Search:

2-PENTEN-4-YN-1-OL 3-PENTEN-1-YNE 3-Penten-1-yne, 5-(1-ethoxyethoxy)-3-methyl-, (3E)- 2-METHYL-1-BUTEN-3-YNE 3-Methyl-2-penten-4-yn-1-ol

3-methylpent-2-en-4-yn-1-ol

1-Hydroxy-3-methyl-2-penten-4-yne

3-methyl-2-penten-4-yn-1-o

3-Methylpenten-2-in-4-ol-1

2-Penten-4-yn-1-ol,3-methyl-

3-Methyl-2-penten-4-yn-1-ol

1-Pentol

105-29-3