ChemicalBook > CAS DataBase List > 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID

2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID

Product Name
2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID
CAS No.
35700-40-4
Chemical Name
2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID
Synonyms
BUTTPARK 97\04-61;7-COUMARANCARBOXYLIC ACID;Dihydrobenzofurancarboxylicacid;2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC AID;2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID;2,3-Dihydro-7-benzofurancarboxylic acid;2,3-dihydro-1-benzofuran-7-carboxylicaci;7-benzofurancarboxylic acid, 2,3-dihydro-;2,3-Dihydrobenzofuran-7-carboxylicAcid>2,3-DIHYDROBENZO[B]FURAN-7-CARBOXYLIC ACID
CBNumber
CB0425951
Molecular Formula
C9H8O3
Formula Weight
164.16
MOL File
35700-40-4.mol
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2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID Property

Melting point:
169-171
Boiling point:
330.6±31.0 °C(Predicted)
Density 
1.344±0.06 g/cm3(Predicted)
storage temp. 
2-8°C
form 
powder to crystal
pka
4.16±0.20(Predicted)
color 
White to Orange to Green
InChI
InChI=1S/C9H8O3/c10-9(11)7-3-1-2-6-4-5-12-8(6)7/h1-3H,4-5H2,(H,10,11)
InChIKey
UHXBMSNEECJPSX-UHFFFAOYSA-N
SMILES
O1C2=C(C(O)=O)C=CC=C2CC1
CAS DataBase Reference
35700-40-4(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi,Xn
Risk Statements 
22-51
HazardClass 
IRRITANT
HS Code 
2932990090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

TCI Chemical
Product number
D2446
Product name
2,3-Dihydrobenzofuran-7-carboxylic Acid
Purity
>98.0%(T)
Packaging
1g
Price
$97
Updated
2025/07/31
TCI Chemical
Product number
D2446
Product name
2,3-Dihydrobenzofuran-7-carboxylic Acid
Purity
>98.0%(T)
Packaging
5g
Price
$306
Updated
2025/07/31
TRC
Product number
D454913
Product name
2,3-Dihydrobenzofuran-7-carboxylic Acid
Packaging
500mg
Price
$175
Updated
2021/12/16
Apolloscientific
Product number
OR101066
Product name
2,3-Dihydrobenzo[b]furan-7-carboxylicacid
Purity
97%
Packaging
250mg
Price
$61
Updated
2021/12/16
SynQuest Laboratories
Product number
2H21-1-W6
Product name
2,3-Dihydrobenzo[b]furan-7-carboxylicacid
Purity
97%
Packaging
250mg
Price
$68
Updated
2021/12/16
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2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID Chemical Properties,Usage,Production

Synthesis

496-16-2

35700-40-4

1. Synthesis of 2,3-dihydrobenzo[b]furan-7-carboxylic acid (15a): N,N,N',N'-tetramethylethylenediamine (TMEDA) (24.3 g, 0.21 mol) was added dropwise to a solution of n-BuLi (1.7 M, 123 mL, 0.21 mol) in 400 mL of hexanes under argon protection followed by the addition of a solution of 2,3-dihydrobenzo[b ] furan (14) (12.56 g, 0.11 mol) solution in hexane (40 mL). The reaction mixture was stirred at room temperature for 4 hours. The reaction mixture was slowly poured into dry ice pre-washed with anhydrous ether, followed by stirring at room temperature overnight. After completion of the reaction, the organic and aqueous layers were separated by diluting the mixture with 300 mL of water. The aqueous layer was acidified to pH 1 with concentrated hydrochloric acid and precipitated as a white solid upon cooling. The precipitate was collected by filtration and recrystallized with dichloromethane (CH2Cl2) to give the target product 15a (9.43 g, 54.7% yield) as a white solid with a melting point of 167-169.5 °C.

References

[1] Patent: US4888353, 1989, A
[2] Patent: EP234872, 1991, B1
[3] Patent: US5122361, 1992, A

2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID Preparation Products And Raw materials

Raw materials

Hexane N,N,N',N'-Tetramethylethylenediamine Sodium sulfate Carbon dioxide 2,3-Dihydrobenzofuran Ethyl acetate Hydrochloric acid n-Butyllithium

Preparation Products

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2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID Suppliers

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View Lastest Price from 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID manufacturers

PNP Biotech Co. Ltd
Product
2,3-Dihydro-1-benzofuran-7-carboxylic acid 35700-40-4
Price
US $0.00/kg
Min. Order
25kg
Purity
98%
Supply Ability
Inquiry
Release date
2023-07-17
Zhuozhou Wenxi import and Export Co., Ltd
Product
2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 35700-40-4
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-11
Nanjing jinheyou Trading Co., Ltd.
Product
2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 35700-40-4
Price
US $0.00/g
Min. Order
1g
Purity
95%min
Supply Ability
20kg/month
Release date
2020-01-06

35700-40-4, 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACIDRelated Search:

5-BROMO-2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 97+%,5-BROMO-2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 2,3-dihydrobenzofuran-6-carboxylic acid 2,2-DIMETHYL-2,3-DIHYDRO-1-BENZOFURAN-7-CARBOXYLIC ACID 2,3-dihydrobenzofuran-4-carboxylic acid 2,3-DIHYDROBENZOFURAN-5-CARBOXYLIC ACID 2,3-Dihydrobenzofuran 4-hydroxy-2,2-dimethyl-2,3-dihydrobenzofuran-6-carboxylic acid 2,3-Dihydrobenzofuran-3-carboxylic acid Fomannoxin acid 4-Hydroxy-2,3-dihydrobenzofuran-2-carboxylic acid 5-(1,2-Benzisoxazol-3-yl)-6,7-dichloro-2,3-dihydrobenzofuran-2-carboxylic acid 6,7-Dichloro-5-[(thiophen-2-yl)carbonyl]-2,3-dihydrobenzofuran-2-carboxylic acid (2R)-6,7-dichloro-5-(dimethylsulfamoyl)-2,3-dihydrobenzofuran-2-carboxylic acid 2-Isopropyl-3-methyl-3-hydroxy-2,3-dihydrobenzofuran-2-carboxylic acid ethyl ester 2,7-DIMETHYL-2,3-DIHYDROBENZOFURAN-6-CARBOXYLIC ACID 2-Ethyl-3-methyl-3-hydroxy-2,3-dihydrobenzofuran-2-carboxylic acid ethyl ester 3-Methyl-3-hydroxy-2,3-dihydrobenzofuran-2-carboxylic acid ethyl ester

  • 7-COUMARANCARBOXYLIC ACID
  • 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID
  • 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC AID
  • 2,3-DIHYDROBENZO[B]FURAN-7-CARBOXYLIC ACID
  • BUTTPARK 97\04-61
  • Dihydrobenzofurancarboxylicacid
  • 2,3-Dihydrobenzofuran-7-carboxylicacid(7-Coumarancarboxylicacid)
  • 2,3-Dihydro-1-benzofuran-7-carboxylic acid
  • 2,3-DIHYDROBENZOFURAN-7-CARBOXYLIC ACID 96+%
  • 2,3-Dihydrobenzofuran-7-carboxylic acid ,97%
  • 7-(2,3-dihydrobenzofuranyl)-carboxylic acid
  • 2,3-Dihydro-1-benzofuran-7-carboxylic acid, 7-Carboxy-2,3-dihydrobenzo[b]furan
  • 7-benzofurancarboxylic acid, 2,3-dihydro-
  • 2,3-Dihydro-7-benzofurancarboxylic acid
  • 2,3-Dihydrobenzofuran-7-carboxylicAcid&gt
  • 2,3-dihydro-1-benzofuran-7-carboxylicaci
  • 35700-40-4
  • 37500-40-4