ChemicalBook CAS DataBase List 1-HYDROXYANTHRACENE

1-HYDROXYANTHRACENE synthesis

11synthesis methods

Product Name:1-HYDROXYANTHRACENE
CAS Number:610-50-4
Molecular formula:C14H10O
Molecular Weight:194.23

610-49-1 Synthesis

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Yield: 95%

Reaction Conditions:

Stage #1:1-aminoanthracene with sodium hydrogencarbonate in ethanol;water at 35; for 12 h;Inert atmosphere;Reflux;
Stage #2: with potassium hydroxide in ethanol;water for 2 h;

Steps:

1.2 Step 2. Synthesis of compound 4:
In a 100 mL three-necked flask, 0.61 g of compound 2 was added,By continuously evacuating nitrogen for 3 to 5 cycles,Exhaust the oxygen and moisture in the system to reach a nitrogen atmosphere.Then add 15mL of absolute ethanol and heat to 35 ° C.Stir until completely dissolved, slowly add 15mL of water,The reaction solution was suspended, and 25 mL of a saturated NaHCO3 solution was added.It was heated to reflux and the solution became clear and reacted for 12 h.A 6 mol / L KOH solution was added dropwise to the reaction solution and stirred for 2 h.A 6 mol / L hydrochloric acid solution was added dropwise thereto until no more bubbles formed in the reaction solution.Stop stirring, cool to room temperature, filter,Dissolve the filter residue in ethanol, filter, and spin-evaporate to obtain 0.58 g of ash-colored solid compound 4, washed with yield solution and saturated NaCl solution.Dried over anhydrous magnesium sulfate, filtered and steamed,Obtained a pale red wine viscous liquid 8.25g,The yield was 95%.

References:

Changzhou University;Xiao Tangxin;Wang Jie;Wu Kehui;Li Zhengyi;Sun Xiaoqiang CN110407675, 2019, A Location in patent:Paragraph 0023; 0025