| Identification | Back Directory | [Name]
1,5-Dibromonaphthalene-2,6-diol | [CAS]
132178-78-0 | [Synonyms]
1,5-Dibromonaphthalene-2,6-diol
1,5-Dibromo-2,6-naphthalenediol
2,6-Naphthalenediol, 1,5-dibromo-
1,5-Dibromo-2,6-dihydroxynaphthalene
1,5-Dibromo-2,6-dihydroxynaphthalene > | [Molecular Formula]
C10H6Br2O2 | [MDL Number]
MFCD16251539 | [MOL File]
132178-78-0.mol | [Molecular Weight]
317.961 |
| Chemical Properties | Back Directory | [Melting point ]
209-213 °C(Solv: 1,4-dioxane (123-91-1)) | [Boiling point ]
384.7±37.0 °C(Predicted) | [density ]
2.081±0.06 g/cm3(Predicted) | [storage temp. ]
Sealed in dry,Room Temperature | [solubility ]
soluble in Methanol | [form ]
powder to crystal | [pka]
6.77±0.50(Predicted) | [color ]
White to Brown | [CAS DataBase Reference]
132178-78-0 |
| Hazard Information | Back Directory | [Synthesis]
Example 1- Synthesis of 1,5-dibromonaphthalene-2,6-diol: Naphthalene-2,6-diol (5.1 g) was dissolved in 50 mL of tetrahydrofuran (THF) followed by addition of N-bromosuccinimide (NBS, 11.4 g). The reaction mixture was heated to reflux and the reaction progress was monitored by gas chromatography-mass spectrometry (GC-MS). Upon completion of the reaction, the reaction was quenched with saturated sodium thiosulfate solution and the solid product was collected by filtration. The solid was washed with water to afford 1,5-dibromonaphthalene-2,6-diol in 90% yield. The mass spectrometry (electrospray ionization, ESI) data were as follows: calculated value (C10H6Br2O2) was 317.8714 and measured value was 317.9. | [References]
[1] Tetrahedron Letters, 1998, vol. 39, # 36, p. 6487 - 6490
[2] Patent: WO2013/149001, 2013, A2. Location in patent: Paragraph 00123
[3] Journal of the Chemical Society, 1937, p. 1859,1861
[4] Patent: US2011/224445, 2011, A1. Location in patent: Page/Page column 8 |
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