7-Hydroxy-2-methyl-4H-chromen-4-one

Base Information

• Chemical Name: 7-Hydroxy-2-methyl-4H-chromen-4-one
• CAS No.: 6320-42-9
• Molecular Formula: C10H8O3
• Molecular Weight: 176.172
• European Community (EC) Number: 641-992-0
• NSC Number: 31894
• DSSTox Substance ID: DTXSID00417932
• Wikidata: Q82228175
• Mol file: 6320-42-9.mol

Synonyms:7-Hydroxy-2-methyl-4H-chromen-4-one;6320-42-9;7-hydroxy-2-methylchromen-4-one;7-Hydroxy-2-methyl-4H-1-benzopyran-4-one;7-hydroxy-2-methylchromone;7-hydroxy-2-methyl-chromen-4-one;NSC31894;Hymecromone impurity B;SCHEMBL1500217;DTXSID00417932;AMY16214;MFCD00208225;NSC 31894;NSC-31894;AKOS003726197;7-Hydroxy-2-methyl-4H-chromen-4-one #;DS-10897;7-hydroxy-2-methyl-4H-1-benzopyrane-4-on;7-hydroxy-2-methyl-4H-1-benzopyrane-4-one;CS-0153131;FT-0705033;F14545;A834270

Chemical Property of 7-Hydroxy-2-methyl-4H-chromen-4-one

Chemical Property:

• Vapor Pressure: 3.08E-05mmHg at 25°C
• Melting Point: 254-255℃
• Boiling Point: 345.5°Cat760mmHg
• PKA: 7.07±0.40(Predicted)
• Flash Point: 143.4°C
• PSA: 50.44000
• Density: 1.319g/cm³
• LogP: 1.80700
• Storage Temp.: Inert atmosphere,Room Temperature
• XLogP3: 2.4
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 0
• Exact Mass: 176.047344113
• Heavy Atom Count: 13
• Complexity: 257

Purity/Quality:

97% ^*data from raw suppliers

7-Hydroxy-2-methyl-4H-chromen-4-one ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Canonical SMILES: CC1=CC(=O)C2=C(O1)C=C(C=C2)O
• Uses: 7-Hydroxy-2-methyl-4H-chromen-4-one is used in the synthesis of 2,2-Dimethyl-2H-pyranoflavonol and pyranochromone derivatives.

Technology Process of 7-Hydroxy-2-methyl-4H-chromen-4-one

There total 34 articles about 7-Hydroxy-2-methyl-4H-chromen-4-one 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: 89.0%

2-acetyl-5-[(2-methoxyethoxy)methoxy]phenyl acetate → 7-hydroxy-2-methyl-4H-chromen-4-one (6320-42-9)

Guidance literature:

2-acetyl-5-[(2-methoxyethoxy)methoxy]phenyl acetate; With sodium hydride; In tetrahydrofuran; for 2h; Reflux; Inert atmosphere;

With p-toluenesulfonic acid monohydrate; In dimethyl sulfoxide; at 100 ℃; for 2h; Inert atmosphere;

DOI:10.1016/j.ejmech.2016.03.043

Reference yield: 82.0%

1-<2-hydroxy-4-(methoxymethoxy)phenyl>butane-1,3-dione → 7-hydroxy-2-methyl-4H-chromen-4-one (6320-42-9)

Guidance literature:

With Amberlyst 15 resin; In isopropyl alcohol; for 9h; Heating;

Reference yield: 60.6%

7-benzyloxy-2-methyl-4H-1-benzopyran-4-one (34086-77-6) → 7-hydroxy-2-methyl-4H-chromen-4-one (6320-42-9)

Guidance literature:

With hydrogen; palladium on activated charcoal; In ethyl acetate;

DOI:10.1246/bcsj.55.2649

upstream raw materials:

7-acetoxy-3-acetyl-2-methyl-chromen-4-one

7-benzyloxy-2-methyl-4H-1-benzopyran-4-one

Acetic acid 2-(1-acetoxy-vinyl)-5-hydroxy-phenyl ester

1-(2,4-diacetoxyphenyl)vinyl acetate

Downstream raw materials:

8-acetyl-7-hydroxy-2-methyl-chromen-4-one

7-hydroxy-2-methyl-chromen-4-one-(2,4-dinitro-phenylhydrazone)

2,4-dihydroxy-3,5-dinitro-benzoic acid

2',4'-dihydroxy-4-acetophenone