ChemicalBook > CAS DataBase List > 3-Methyl-2-penten-4-yn-1-ol

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
More
Less

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)
More
Less

Safety

RIDADR 
2705
HazardClass 
8
PackingGroup 
II
More
Less

Hazard and Precautionary Statements (GHS)

More
Less

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

Preparation Products

More
Less

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

Shanghai ChuCheng Trade Co., Ltd.
Tel
021-5983532 15201998618
Fax
021-59833275
Email
3002724020@qq.com
Country
China
ProdList
4619
Advantage
58
Hubei xin bonus chemical co. LTD
Tel
86-13657291602
Fax
027-59338440
Email
linda@hubeijusheng.com
Country
CHINA
ProdList
22968
Advantage
58
Hubei chengfeng chemical co. LTD
Tel
13125175253
Email
1005221305@qq.com
Country
China
ProdList
3034
Advantage
58
Hubei chengfeng chemical co. LTD
Tel
15827338311
Email
1802085297@qq.com
Country
China
ProdList
4005
Advantage
58

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


  • 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