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ChemicalBook CAS DataBase List 2,7-Dihydroxynaphthalene
582-17-2

2,7-Dihydroxynaphthalene synthesis

7synthesis methods
2,7-Naphthalenediol [582-17-2], mp 194℃, is produced by caustic fusion of naphthalene-2,7- disulfonic acid or 2-hydroxynaphthalene-7-sulfonic acid at 300℃. It undergoes amination at 250℃ to give 2,7-naphthalenediamine and couples with diazotized anilines in the 1-position or in the 1,8-positions. It forms a resin with formaldehyde.
20258-95-1 Synthesis
2,7-Dihydroxynaphthalene-1-carbaldehyde

20258-95-1
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Yield:-

Steps:

Multi-step reaction with 2 steps
1: 52 percent / Br2 / pyridine / 1 h
2: 20 percent / hydrogen chloride / ethanol / 0.5 h

References:

Carey, John L.;Thomson, Ronald H.;Cox, Philip J. [Journal of the Chemical Society. Perkin transactions I,1983,p. 1267 - 1274]

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