2,2-diMethyl-5,8-diMethoxy-2H-1-benzopyrane

Base Information

• Chemical Name: 2,2-diMethyl-5,8-diMethoxy-2H-1-benzopyrane
• CAS No.: 113949-29-4
• Molecular Formula: C13H16 O3
• Molecular Weight: 220.268
• Hs Code.: 2909199090
• Mol file: 113949-29-4.mol

Synonyms:2,2-dimethyl-5,8-dimethoxychromene;2,2-dimethyl-5,8-dimethoxy-2H-1-benzopyrane;2H-1-Benzopyran,5,8-dimethoxy-2,2-dimethyl;5,8-dimethoxy-2,2-dimethyl-2h-chromene;

Chemical Property of 2,2-diMethyl-5,8-diMethoxy-2H-1-benzopyrane

Chemical Property:

• Vapor Pressure: 0.00037mmHg at 25°C
• Melting Point: 65 °C
• Boiling Point: 328.1°Cat760mmHg
• Flash Point: 110°C
• PSA: 27.69000
• Density: 1.063g/cm³
• LogP: 2.88800
• Storage Temp.: 2-8°C

Purity/Quality:

99%, ^*data from raw suppliers

5,8-Dimethoxy-2,2-dimethyl-2H-chromene 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2,2-diMethyl-5,8-diMethoxy-2H-1-benzopyrane

There total 12 articles about 2,2-diMethyl-5,8-diMethoxy-2H-1-benzopyrane 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: 91.0%

1,4-dimethoxy-2-((2-methylbut-3-yn-2-yl)oxy)benzene (132681-17-5) → 2,2-dimethyl-5,8-dimethoxy-2H-1-benzopyrane (113949-29-4)

Guidance literature:

In toluene; Heating;

DOI:10.1039/P19900002979

Reference yield: 85.0%

1-[2-(2-tetrahydropyranyloxy)-3,6-dimethoxyphenyl]-3-methyl-2-buten-1-ol (358622-84-1) → 2,2-dimethyl-5,8-dimethoxy-2H-1-benzopyrane (113949-29-4)

Guidance literature:

In water; acetone; for 12h; Heating;

DOI:10.1081/SCC-100000588

Reference yield: 84.0%

5,8-dimethoxy-2,2-dimethyl-4-chromanol (173031-72-6) → 2,2-dimethyl-5,8-dimethoxy-2H-1-benzopyrane (113949-29-4)

Guidance literature:

With hydrogenchloride; In chloroform; Ambient temperature;

DOI:10.1139/v95-174

upstream raw materials:

1,4-dimethoxy-2-((2-methylbut-3-yn-2-yl)oxy)benzene

(E)-4-(2,5-Dimethoxy-phenyl)-2-methyl-but-3-en-2-ol

5,8-dimethoxy-2,2-dimethyl-4-chromanol

1-[2-(2-tetrahydropyranyloxy)-3,6-dimethoxyphenyl]-3-methyl-2-buten-1-ol

Downstream raw materials:

5,8-dimethoxy-2,2-dimethylchroman

2-(1,1-dimethyl-allyloxy)-3,6-dimethoxy-phenol

acrylic acid 2-(1,1-dimethyl-allyloxy)-3,6-dimethoxy-phenyl ester

2,2-dimethyl-2H-benzo[g]chromene-5,10-dione

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