2,5,7,8-tetramethyl-2-(4-methylpent-3-en-1-yl)-3,4-dihydro-2H-chromen-6-yl acetate

Base Information

Chemical Name:2,5,7,8-tetramethyl-2-(4-methylpent-3-en-1-yl)-3,4-dihydro-2H-chromen-6-yl acetate
CAS No.:16146-60-4
Molecular Formula:C₂₁H₃₀O₃
Molecular Weight:330.467
Hs Code.:

Synonyms:2H-1-Benzopyran-6-ol,3,4-dihydro-2,5,7,8-tetramethyl-2-(4-methyl-3-pentenyl)-, acetate (9CI);6-Chromanol, 2,5,7,8-tetramethyl-2-(4-methyl-3-pentenyl)-, acetate (8CI);2,5,7,8-Tetramethyl-2-(4-methylpenten-3-yl)-6-hydroxychroman acetate

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of 2,5,7,8-tetramethyl-2-(4-methylpent-3-en-1-yl)-3,4-dihydro-2H-chromen-6-yl acetate

Chemical Property:

Vapor Pressure:2.07E-07mmHg at 25°C
Boiling Point:424.4°Cat760mmHg
Flash Point:180.7°C
Density:1.003g/cm³

Purity/Quality:

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:: SDS file from LookChem

Useful:

Technology Process of 2,5,7,8-tetramethyl-2-(4-methylpent-3-en-1-yl)-3,4-dihydro-2H-chromen-6-yl acetate

There total 6 articles about 2,5,7,8-tetramethyl-2-(4-methylpent-3-en-1-yl)-3,4-dihydro-2H-chromen-6-yl acetate 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:

: 78-70-6
3,7-dimethylocta-1,6-dien-3-ol

: 16146-60-4
6-acetoxy-2,5,7,8-tetramethyl-2-(4-methylpent-3-en-1-yl)chroman

Guidance literature:: Multi-step reaction with 2 steps

1: (+)-camphor-10-sulfonic acid / octane / 3 h / Heating

2: pyridine / 0.5 h / 20 °C

With pyridine; (+)-10-camphorsulfonic acid; In octane;
DOI:10.1007/s11172-006-0253-8

Reference yield:

: 700-13-0
Trimethylhydroquinone

: 16146-60-4
6-acetoxy-2,5,7,8-tetramethyl-2-(4-methylpent-3-en-1-yl)chroman

Guidance literature:: Multi-step reaction with 2 steps

1: (+)-camphor-10-sulfonic acid / octane / 3 h / Heating

2: pyridine / 0.5 h / 20 °C

With pyridine; (+)-10-camphorsulfonic acid; In octane;
DOI:10.1007/s11172-006-0253-8

Reference yield:

: 78-70-6
3,7-dimethylocta-1,6-dien-3-ol

: 700-13-0
Trimethylhydroquinone

: 108-24-7
acetic anhydride

: 2,5,7,8-tetramethyl-2-(4-methylpent-4-enyl)chroman-6-yl acetate

: 16146-60-4
6-acetoxy-2,5,7,8-tetramethyl-2-(4-methylpent-3-en-1-yl)chroman

Guidance literature:: 3,7-dimethylocta-1,6-dien-3-ol; Trimethylhydroquinone; With camphor-10-sulfonic acid; In 5,5-dimethyl-1,3-cyclohexadiene; for 5h; Inert atmosphere; Reflux;

acetic anhydride; With pyridine; at 20 ℃; Inert atmosphere; Cooling with ice;
DOI:10.1246/bcsj.82.829