3,3-dimethylpent-1-yne

Base Information

• Chemical Name: 3,3-dimethylpent-1-yne
• CAS No.: 918-82-1
• Molecular Formula: C7H12
• Molecular Weight: 96.1702
• Mol file: 918-82-1.mol

Synonyms:1-Pentyne, 3,3-dimethyl-;3,3-Dimethylpent-1-in;tert-pentylethyne;3,3-dimethylpentyne;3,3-Dimethyl-1-pentyne;3,3-dimethyl-pent-1-yne;1-Pentyne,3-dimethyl;1,1-Dimethyl-propylacetylen;1-Pentyne,3,3-dimethyl;

Chemical Property of 3,3-dimethylpent-1-yne

Chemical Property:

• Vapor Pressure: 132mmHg at 25°C
• Melting Point: -88.73°C (estimate)
• Refractive Index: 1.3908
• Boiling Point: 72°Cat760mmHg
• Flash Point: °C
• PSA: 0.00000
• Density: 0.751g/cm³
• LogP: 2.05580

Purity/Quality:

3,3-Dimethyl-1-pentyne ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 3,3-dimethylpent-1-yne

There total 9 articles about 3,3-dimethylpent-1-yne which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 65.0%

3,3-dimethyl-2-pentanone (20669-04-9) → 3,3-dimethyl-1-pentyne (918-82-1)

Guidance literature:

3,3-dimethyl-2-pentanone; With pyridine; phosphorus pentachloride; In dichloromethane; at 0 - 5 ℃; for 1h;

With potassium hydroxide; In 2-ethoxy-ethanol; Heating;

DOI:10.1002/chem.200400723

Reference yield: 43.0%

triethylaluminum (97-93-8) + 1-bromo-3-methylbuta-1,2-diene (6214-32-0) → 3-Ethyl-1,1-dimethylallene (29212-09-7) + 3,3-dimethyl-1-pentyne (918-82-1)

Guidance literature:

at 25 ℃; for 6h; Yields of byproduct given;

Reference yield:

1,1-dichloro-3,3-dimethyl-pentane (6130-99-0) → 3,3-dimethyl-1-pentyne (918-82-1)

Guidance literature:

With potassium hydroxide; In butan-1-ol; at 130 - 140 ℃;

DOI:10.1007/BF00850341

upstream raw materials:

3-chloro-3-methylbut-1-yne

ethylmagnesium bromide

1,1-dichloro-3,3-dimethyl-pentane

triethylaluminum