HCID 771461, compound → HCID 135627612, compound

Participants

Reaction Steps

Anhydrous ferric chloride (2.6 g) was added over a period of 30 minutes to a solution of 2-(2H-benzotriazol-2-yl)-4-cumyl-phenol (2.7 g) in methylene chloride (100 ml) and the resulting mixture stirred at room temperature for 6 hours. After filtering over celite, the filtrate was extracted with dilute hydrochloric acid, washed with water and purified by column chromatography using hexane/ethyl acetate 9:1 v/v mixture as the eluent. Evaporation of the volatiles gave 3,3′bis-(2H-benzotriazol-2-yl)-5,5′-di-cumyl-1,1′-biphenyl-2,2′-diol (COMPOUND 3) as a white powder, m.p. 249-251° C.

Provenance & Evidence