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40643-14-9

4-(1H-INDOL-2-YL)PHENOL synthesis

5synthesis methods
-

Yield:40643-14-9 84.6%

Reaction Conditions:

with phosphoric acid at 100 - 120; for 1 h;

Steps:

4.1.2 Preparation of X-(1H-indol-2-yl)phenols (3-4)

General procedure: 4- or 2-hydroxy acetophenone phenylhydrazone (10.0g, 0.044M) was heated with 60g of polyphosphoric acid on an oil bath for 1h and with continuous stirring maintaining the temperature at 100-120°C. The mixture was finally poured over crushed ice and stirred well. The precipitates obtained were filtered at the pump and washed well with water affording the corresponding X-(1H-indol-2-yl)phenols.

References:

Bali, Alka;Sen, Umesh;Peshin, Tania [European Journal of Medicinal Chemistry,2014,vol. 74,p. 477 - 490]