2H-1-Benzopyran, 7-methoxy-

Base Information

• Chemical Name: 2H-1-Benzopyran, 7-methoxy-
• CAS No.: 18385-89-2
• Molecular Formula: C₁₀H₁₀O₂
• Molecular Weight: 162.188
• DSSTox Substance ID: DTXSID40939764
• Nikkaji Number: J283.794C
• Wikidata: Q82916324
• Mol file: 18385-89-2.mol

Synonyms:7-Methoxybenzopyran;2H-1-Benzopyran, 7-methoxy-;18385-89-2;7-methoxy-2H-1-Benzopyran;ghl.PD_Mitscher_leg0.899;7-methoxy-benzopyran;7-Methoxy-alpha-chromene;DTXSID40939764

Chemical Property of 2H-1-Benzopyran, 7-methoxy-

Chemical Property:

• XLogP3: 2.8
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 1
• Exact Mass: 162.068079557
• Heavy Atom Count: 12
• Complexity: 177

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: COC1=CC2=C(C=CCO2)C=C1

Technology Process of 2H-1-Benzopyran, 7-methoxy-

There total 3 articles about 2H-1-Benzopyran, 7-methoxy- 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: 80.0%

3-m-methoxyphenoxypropionaldehyde diethyl acetal (153750-80-2) → 3-chromene (18385-89-2) + 7-methoxy chroman-4-ol (18385-79-0)

Guidance literature:

With hydrogenchloride; In tetrahydrofuran;

DOI:10.1080/00397919608003732

Reference yield: 65.0%

C15H20O3 → 3-chromene (18385-89-2) + pentan-3-one (96-22-0)

Guidance literature:

With 2,3-diazabicyclo[2.2.1]heptane bis-trifluoroacetic acid; In ethanol; at 140 ℃; for 12h; Sealed tube;

DOI:10.1021/acscatal.9b03656

Reference yield:

m-methoxyphenyl 2-propynyl ether (41580-72-7) → 3-chromene (18385-89-2) + 4-methoxy-2-methylbenzofuran (3781-89-3) + 6-methoxy-2-methylbenzofuran (29040-48-0) + 5-methoxybenzopyran (41580-69-2)

Guidance literature:

With cesium fluoride; N,N-diethylaniline; for 8h; Heating;

DOI:10.3987/COM-94-S(B)46

upstream raw materials:

m-methoxyphenyl 2-propynyl ether

3-m-methoxyphenoxypropionaldehyde diethyl acetal

Downstream raw materials:

7-methoxy-3-phenyl-2H-chromene

(6aS,11aS)-9-Benzyloxy-3-methoxy-6a,11a-dihydro-6H-benzo[4,5]furo[3,2-c]chromen-8-ol

rac-(6aR,11aR)-8-hydroxy-3,9-dimethoxypterocarpan

(6aS,6bR,10aS,10bR)-3,9-Dimethoxy-6a,6b,10a,10b-tetrahydro-6H-5-oxa-benzo[a]biphenylene-7,10-dione