1: 3,3,4,4,5,5,6,6,6-nonafluorohexan-1-ol; acrylic acid With sodium carbonate; triethylamine; benzenesulfonyl chloride; Sumilizer GM in dichloromethane T=30 - 40°C; 2 h; 2: With water in dichloromethane 1 h; 3: acrylic acid With water; triethylamine; benzenesulfonyl chloride Product distribution / selectivity; more than 3 stages;

triethylamine in tetrahydrofuran T=0°C; 2 h;

(10H)-phenothiazine in tert-butyl alcohol T=150°C; 6 h;

(10H)-phenothiazine in tert-butyl alcohol T=160°C; 6 h;