| Identification | More | [Name]
1,4-Benzodioxane-6-carboxylic acid | [CAS]
4442-54-0 | [Synonyms]
1,4-BENZODIOXANE-6-CARBOXYLIC ACID
2,3-DIHYDRO-1,4-BENZODIOXINE-6-CARBOXYLIC ACID
2,3-DIHYDRO-BENZO[1,4]DIOXINE-6-CARBOXYLIC ACID
2,3-DIHYDROBENZO[B][1,4]DIOXINE-6-CARBOXYLIC ACID
3,4-(ETHYLENEDIOXY)BENZOIC ACID
AKOS B013959
AKOS BBS-00005369
ART-CHEM-BB B013959
BUTTPARK 85\15-10
CHEMBRDG-BB 4003145
RARECHEM AL BO 1905
TIMTEC-BB SBB007047
3,4-(ETHYLENEDIOXY)BENZOIC ACID 98%
2,3-Dihydro-1,4-Benzodioxine-6 | [Molecular Formula]
C9H8O4 | [MDL Number]
MFCD00463509 | [Molecular Weight]
180.16 | [MOL File]
4442-54-0.mol |
| Chemical Properties | Back Directory | [Melting point ]
134-138 °C(lit.) | [Boiling point ]
339.8±41.0 °C(Predicted) | [density ]
1.376±0.06 g/cm3(Predicted) | [storage temp. ]
Sealed in dry,Room Temperature | [solubility ]
Acetone (Slightly), DMSO (Slightly), Methanol (Slightly) | [form ]
Crystalline Solid | [pka]
4.37±0.20(Predicted) | [color ]
Pale brown | [InChI]
1S/C9H8O4/c10-9(11)6-1-2-7-8(5-6)13-4-3-12-7/h1-2,5H,3-4H2,(H,10,11) | [InChIKey]
JWZQJTGQFHIRFQ-UHFFFAOYSA-N | [SMILES]
OC(=O)c1ccc2OCCOc2c1 | [CAS DataBase Reference]
4442-54-0(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [HazardClass ]
IRRITANT | [HS Code ]
2932990090 | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 |
| Hazard Information | Back Directory | [Chemical Properties]
White to Off-White Solid | [Uses]
1,4-Benzodioxane-6-carboxylic Acid is used in the preparation of new anti-inflammatory compounds containing the 1,4-benzodioxine system.
| [Uses]
3,4-Ethylenedioxybenzoic Acid is used in the preparation of new anti-inflammatory compounds containing the 1,4-benzodioxine system. | [Synthesis]
General procedure for the synthesis of 1,4-benzodioxane-6-carboxylic acid from 1,4-benzodioxane-6-carboxaldehyde: To a 20 mL methanol solution of urea-hydrogen peroxide complex (1:1) (6 g, 63.4 mmol) and aldehydes 3a-f (4.28 mmol) in stirring was added an aqueous NaOH solution (1.6 mL, 6 M solution). The reaction mixture was refluxed and stirred for 1 h at room temperature, followed by the addition of urea-hydrogen peroxide complex (1.5 g, 15.85 mmol) and continued refluxing for 30 min. Upon completion of the reaction, the mixture was cooled to room temperature and the pH was adjusted to 3 with 18% aqueous HCl. The precipitates were collected by filtration, washed with 2 x 50 mL of ice water and dried to give 4a-f (82-94% yield) as an off-white solid. For compound 4e, the reaction mixture was cooled at room temperature and the pH was adjusted to 3 with 18% HCl aqueous solution. methanol was removed by evaporation and the mixture was subsequently diluted with 30 mL of water and extracted with CHCl3. The organic phase was washed with water and the solvent was evaporated and dried. | [References]
[1] Bioorganic and Medicinal Chemistry, 2006, vol. 14, # 24, p. 8219 - 8248
[2] Bioorganic and Medicinal Chemistry Letters, 2011, vol. 21, # 6, p. 1578 - 1581
[3] Journal of Medicinal Chemistry, 1999, vol. 42, # 11, p. 1951 - 1964
[4] Bioorganic and Medicinal Chemistry, 2004, vol. 12, # 1, p. 71 - 85
[5] Patent: US5530028, 1996, A |
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