6H-Dibenzo(b,d)pyran-6-one, 2,7,9-trihydroxy-3-methoxy-

Base Information

Chemical Name:6H-Dibenzo(b,d)pyran-6-one, 2,7,9-trihydroxy-3-methoxy-
CAS No.:42719-66-4
Molecular Formula:C14H10O6
Molecular Weight:274.23
Hs Code.:
DSSTox Substance ID:DTXSID80195403
Nikkaji Number:J21.546E
Wikidata:Q83068316
Mol file:42719-66-4.mol

Synonyms:Altenuisol;42719-66-4;6H-Dibenzo(b,d)pyran-6-one, 2,7,9-trihydroxy-3-methoxy-;DTXSID80195403

Suppliers and Price of 6H-Dibenzo(b,d)pyran-6-one, 2,7,9-trihydroxy-3-methoxy-

Supply Marketing:

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of 6H-Dibenzo(b,d)pyran-6-one, 2,7,9-trihydroxy-3-methoxy-

Chemical Property:

Vapor Pressure:1.63E-14mmHg at 25°C
Boiling Point:589.9°C at 760 mmHg
Flash Point:231.8°C
PSA：100.13000
Density:1.586g/cm³
LogP:2.07160
XLogP3:2.5
Hydrogen Bond Donor Count:3
Hydrogen Bond Acceptor Count:6
Rotatable Bond Count:1
Exact Mass:274.04773803
Heavy Atom Count:20
Complexity:386

Purity/Quality:

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:: SDS file from LookChem

Useful:

Canonical SMILES:COC1=C(C=C2C(=C1)OC(=O)C3=C2C=C(C=C3O)O)O

Technology Process of 6H-Dibenzo(b,d)pyran-6-one, 2,7,9-trihydroxy-3-methoxy-

There total 7 articles about 6H-Dibenzo(b,d)pyran-6-one, 2,7,9-trihydroxy-3-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: 100.0%

: 1402158-27-3
9-benzyloxy-2,7-dihydroxy-3-methoxy-6H-benzo[c]chromen-6-one

: 42719-66-4
altenuisol

Guidance literature:: With palladium 10% on activated carbon; hydrogen; In tetrahydrofuran; at 40 ℃; for 24h; under 3750.38 Torr;
DOI:10.1002/ejoc.201200506

Reference yield:

: 824-46-4
methoxyhydroquinone

: 42719-66-4
altenuisol

Guidance literature:: Multi-step reaction with 3 steps

1: bromine; acetic acid / 0.33 h / 15 °C

2: dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; palladium diacetate; caesium carbonate / 1,4-dioxane; water / 2.5 h / 80 °C / Inert atmosphere

3: palladium 10% on activated carbon; hydrogen / tetrahydrofuran / 24 h / 40 °C / 3750.38 Torr

With dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; palladium 10% on activated carbon; hydrogen; bromine; palladium diacetate; caesium carbonate; acetic acid; In tetrahydrofuran; 1,4-dioxane; water; 2: Suzuki coupling;
DOI:10.1002/ejoc.201200506

Reference yield:

: 83-30-7
acide 2,4,6-trihydroxybenzoique

: 42719-66-4
altenuisol

Guidance literature:: Multi-step reaction with 6 steps

1: dmap; thionyl chloride / 1,2-dimethoxyethane / 16 h / -15 - 20 °C

2: di-isopropyl azodicarboxylate; triphenylphosphine / tetrahydrofuran / 4 h / 0 - 20 °C

3: pyridine / 3.5 h / 0 °C

4: tetrakis(triphenylphosphine) palladium⁽⁰⁾; triethylamine / 1,4-dioxane / 1.5 h / 80 °C

5: dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; palladium diacetate; caesium carbonate / 1,4-dioxane; water / 2.5 h / 80 °C / Inert atmosphere

6: palladium 10% on activated carbon; hydrogen / tetrahydrofuran / 24 h / 40 °C / 3750.38 Torr

With dicyclohexyl-(2',6'-dimethoxybiphenyl-2-yl)-phosphane; pyridine; dmap; tetrakis(triphenylphosphine) palladium⁽⁰⁾; thionyl chloride; di-isopropyl azodicarboxylate; palladium 10% on activated carbon; hydrogen; palladium diacetate; caesium carbonate; triethylamine; triphenylphosphine; In tetrahydrofuran; 1,4-dioxane; 1,2-dimethoxyethane; water; 5: Suzuki coupling;
DOI:10.1002/ejoc.201200506