2H-Oxireno(c)(1)benzopyran, 1a,7b-dihydro-5-methoxy-2,2-dimethyl-

Base Information

• Chemical Name: 2H-Oxireno(c)(1)benzopyran, 1a,7b-dihydro-5-methoxy-2,2-dimethyl-
• CAS No.: 73385-35-0
• Molecular Formula: C₁₂H₁₄O₃
• Molecular Weight: 206.241
• DSSTox Substance ID: DTXSID90994101

Synonyms:73385-35-0;2H-Oxireno(c)(1)benzopyran, 1a,7b-dihydro-5-methoxy-2,2-dimethyl-;DTXSID90994101;5-Methoxy-2,2-dimethyl-1a,7b-dihydro-2H-oxireno[c][1]benzopyran

Chemical Property of 2H-Oxireno(c)(1)benzopyran, 1a,7b-dihydro-5-methoxy-2,2-dimethyl-

Chemical Property:

• Vapor Pressure: 0.00371mmHg at 25°C
• Boiling Point: 289.9°Cat760mmHg
• Flash Point: 96.2°C
• Density: 1.148g/cm³
• XLogP3: 1.8
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 1
• Exact Mass: 206.094294304
• Heavy Atom Count: 15
• Complexity: 264

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1(C2C(O2)C3=C(O1)C=C(C=C3)OC)C

Technology Process of 2H-Oxireno(c)(1)benzopyran, 1a,7b-dihydro-5-methoxy-2,2-dimethyl-

There total 3 articles about 2H-Oxireno(c)(1)benzopyran, 1a,7b-dihydro-5-methoxy-2,2-dimethyl- 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:

2,2 dimethyl 7 methoxychromene (17598-02-6) → 3,4-dihydro-3,4-epoxy-7-methoxy-2,2-dimethyl-2H-benzopyran (73385-35-0)

Guidance literature:

With 3,3-dimethyldioxirane; In acetone; acetonitrile; at -40 ℃; Yield given;

DOI:10.1016/S0040-4039(00)97852-3

Reference yield:

(+/-)-trans-3-Bromo-7-methoxy-2,2-dimethylchraman-4-ol (73385-38-3,82833-92-9,149113-52-0) → 3,4-dihydro-3,4-epoxy-7-methoxy-2,2-dimethyl-2H-benzopyran (73385-35-0)

Guidance literature:

With sodium hydride; In tetrahydrofuran; for 1h;

Reference yield:

→ 3,4-dihydro-3,4-epoxy-7-methoxy-2,2-dimethyl-2H-benzopyran (73385-35-0)

Guidance literature:

aus Verb.(1), 1) N-Brom-succinimid, 2) Hydrolyse;

DOI:10.1039/C39790000920

upstream raw materials:

2,2 dimethyl 7 methoxychromene

(+/-)-trans-3-Bromo-7-methoxy-2,2-dimethylchraman-4-ol

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