4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID

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Products Intro: Product Name:4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID
CAS:56671-28-4
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Products Intro: Product Name:4,5,6,7-tetrahydro-4-oxo-3-benzofurancarboxylicacid
CAS:56671-28-4
Purity:0.99 Package:5KG;1KG
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Products Intro: Product Name:4-Oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid
CAS:56671-28-4
Purity:97+% Package:1g;10g;100g;;1kg Remarks:Z-40573
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Products Intro: Product Name:4,5,6,7-Tetrahydro-4-oxobenzofuran-3-caroxylic acid
CAS:56671-28-4
Purity:0.99 Package:1kg
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Products Intro: Product Name:4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID
CAS:56671-28-4
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4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID Basic information
Product Name:4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID
Synonyms:4,5,6,7-tetrahydro-4-oxo-3-benzofurancarboxylicacid;4,5,6,7-Tetrahydro-4-oxobenzofuran-3-caroxylic acid;4-OXO-4,5,6,7-TETRAHYDRO-1-BENZOFURAN-3-CARBOXYLIC ACID;4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID;4-OXO-4,5,6,7-TETRAHYDROBENZOFURAN-3-CARBOXYLIC ACID;4-OXO-4,5,6,7-TETRAHYDROCOUMARONE-3-CARBOXYLIC ACID;AKOS BBS-00000134;IFLAB-BB F1901-0074
CAS:56671-28-4
MF:C9H8O4
MW:180.16
EINECS:
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Mol File:56671-28-4.mol
4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID Structure
4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID Chemical Properties
Melting point 140 °C
Boiling point 383.5±42.0 °C(Predicted)
density 1.406±0.06 g/cm3(Predicted)
storage temp. 2-8°C
pka3.74±0.20(Predicted)
AppearanceOff-white to yellow Solid
CAS DataBase Reference56671-28-4
Safety Information
Hazard Codes C
Risk Statements 36/37/38
Safety Statements 26-36/37/39
Hazard Note Corrosive
HazardClass IRRITANT
HS Code 2932990090
MSDS Information
4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID Usage And Synthesis
Chemical PropertiesWhite needle crystals. Melting point 141℃.
Uses4-Oxo-4,5,6,7-tetrahydrobenzo[b]furan-3-carboxylic acid can be used as an intermediate of Propala.
DefinitionChEBI: 4-oxo-4,5,6,7-tetrahydrobenzo[b]furan-3-carboxylic acid is a member of benzofurans.
SynthesisThe methanol solution of resorcinol and potassium hydroxide is used to react with hydrogen under the action of active nickel to generate potassium 3-ketocyclohex-1-enolate, which is then cyclized with ethyl bromopyruvate under alkaline conditions , and then acidified to obtain 4-oxo-4,5,6,7-tetrahydrobenzo[b]furan-3-carboxylic acid.
4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID Preparation Products And Raw materials
Raw materialsResorcinol-->Ethyl bromopyruvate
Preparation Products4-HYDROXYBENZOFURAN-3-CARBOXYLIC ACID
Tag:4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID(56671-28-4) Related Product Information
METHYL 4-OXO-4,5,6,7-TETRAHYDRO-1-BENZOFURAN-3-CARBOXYLATE 6,6-DIMETHYL-4-OXO-4,5,6,7-TETRAHYDRO-1-BENZOFURAN-3-CARBOXYLIC ACID ETHYL 2,5,5-TRIMETHYL-7-OXO-3,4,5,6-TETRAHYDRO-3-OXAINDENECARBOXYLATE 4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID 2-methyl-4-oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylic acid