1: With hydrogen; toluene-4-sulfonic acid; palladium hydroxide - carbon; water in methanol T=50°C; P=2585.74 Torr; 24 h; 2: With sodium t-butanolate in methanol 2 h; Heating;

hydrogen; toluene-4-sulfonic acid; palladium hydroxide - carbon; water in methanol T=50°C; P=2585.74 Torr; 24 h;