7-methoxy-3-nitro-2H-1-benzopyran

Base Information

• Chemical Name: 7-methoxy-3-nitro-2H-1-benzopyran
• CAS No.: 92210-60-1
• Molecular Formula: C10H9 N O4
• Molecular Weight: 207.18
• Hs Code.: 2909199090
• DSSTox Substance ID: DTXSID50533176
• Nikkaji Number: J2.859.177B
• Wikidata: Q82406314
• Mol file: 92210-60-1.mol

Synonyms:7-METHOXY-3-NITRO-2H-CHROMENE;92210-60-1;7-methoxy-3-nitro-2H-1-benzopyran;DTXSID50533176

Chemical Property of 7-methoxy-3-nitro-2H-1-benzopyran

Chemical Property:

• Vapor Pressure: 0mmHg at 25°C
• Melting Point: 120 °C(Solv: hexane (110-54-3))
• Refractive Index: 1.595
• Boiling Point: 348.259°C at 760 mmHg
• Flash Point: 168.401°C
• PSA: 64.28000
• Density: 1.344g/cm³
• LogP: 2.22840
• XLogP3: 1.8
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 1
• Exact Mass: 207.05315777
• Heavy Atom Count: 15
• Complexity: 284

Purity/Quality:

2H-1-BENZOPYRAN,7-METHOXY-3-NITRO- 95 ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Canonical SMILES: COC1=CC2=C(C=C1)C=C(CO2)[N+](=O)[O-]

Technology Process of 7-methoxy-3-nitro-2H-1-benzopyran

There total 3 articles about 7-methoxy-3-nitro-2H-1-benzopyran 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: 67.0%

2-Hydroxy-4-methoxybenzaldehyde (673-22-3) + 1-nitroethylene (3638-64-0,26618-70-2) → 7-methoxy-3-nitro-2H-1-benzopyran (92210-60-1)

Guidance literature:

With dibutylamine; In chloroform; at 80 ℃; for 24h;

Reference yield: 63.0%

2-Hydroxy-4-methoxybenzaldehyde (673-22-3) + 2-nitro-1-ethanol (625-48-9) → 7-methoxy-3-nitro-2H-1-benzopyran (92210-60-1)

Guidance literature:

With dibutylamine hydrochloride; In various solvent(s); for 6.5h; Heating;

DOI:10.1055/s-1984-30841

Reference yield: 37.0%

2-Hydroxy-4-methoxybenzaldehyde (673-22-3) + 2-nitroethyl acetate (18942-89-7) → 7-methoxy-3-nitro-2H-1-benzopyran (92210-60-1)

Guidance literature:

With piperidine; In toluene; Dean-Stark; Reflux;

DOI:10.1007/s00706-016-1885-5

upstream raw materials:

2-Hydroxy-4-methoxybenzaldehyde

1-nitroethylene

2-nitro-1-ethanol

2-nitroethyl acetate

Downstream raw materials:

7-methoxy-3-nitro-3,4-dihydro-2H-1-benzopyran

7-methoxy-3-amino-3,4-dihydro-2H-1-benzopyran

(6aS,13cR)-9-benzyl-3-methoxy-6a-nitro-6,6a,7,8,9,13c-hexahydrochromeno[3,4-c]carbazole

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