4-Oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid

4-Oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid - Names and Identifiers

Name	4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID
Synonyms	AKOS BBS-00000134 IFLAB-BB F1901-0074 4-OXO-4,5,6,7-TETRAHYDROCOUMARONE-3-CARBOXYLIC ACID 4,5,6,7-Tetrahydro-4-oxobenzofuran-3-caroxylic acid 4,5,6,7-tetrahydro-4-oxo-3-benzofurancarboxylicacid 4-OXO-4,5,6,7-TETRAHYDROBENZOFURAN-3-CARBOXYLIC ACID 4-OXO-4,5,6,7-TETRAHYDROBENZO[B]FURAN-3-CARBOXYLIC ACID 4-OXO-4,5,6,7-TETRAHYDRO-1-BENZOFURAN-3-CARBOXYLIC ACID
CAS	56671-28-4

4-Oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid - Physico-chemical Properties

Molecular Formula	C9H8O4
Molar Mass	180.16
Density	1.406±0.06 g/cm3(Predicted)
Melting Point	140 °C
Boling Point	383.5±42.0 °C(Predicted)
Storage Condition	Room Temprature
Physical and Chemical Properties	Chemical properties white needle-like crystals. Melting point 141 ℃.
Use	Use of the intermediate of the static.

4-Oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid - Risk and Safety

Hazard Symbols	C - Corrosive
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.

4-Oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid - Upstream Downstream Industry

Raw Materials

Resorcinol
Ethyl bromopyruvate

4-Oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid - Nature

storage conditions	Sealed in dry,2-8°C
acidity coefficient (pKa)	3.74±0.20(Predicted)

Last Update：2024-04-10 22:29:15

4-Oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid - Security information

Hazard Note	Corrosive
HazardClass	IRRITANT

Last Update：2024-04-10 22:29:15

4-Oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid - Production method

The methanol solution of resorcinol and potassium hydroxide is reacted with hydrogen under the action of active nickel to generate 3-ketocyclohex-1-enol potassium, which is then cyclically combined with ethyl bromopyruvate under alkaline conditions, and then acidified to obtain the product.

Last Update：2024-04-10 22:29:15