triethylamine; 5-(2-hydroxyethyl)-4-methyl-3-(phenylmethyl)thiazolium chloride in ethanol T=70°C; 48 h;

triethylamine; 5-(2-hydroxyethyl)-4-methyl-3-(phenylmethyl)thiazolium chloride in ethanol T=70°C; 48 h;

triethylamine; 5-(2-hydroxyethyl)-4-methyl-3-(phenylmethyl)thiazolium chloride in ethanol T=70°C; 48 h;

cellulose sulfuric acid in ethanol T=20°C; Mannich type reaction; 16 h;

1: cyclopentyl-magnesium chloride / diethyl ether / 1.5 h / -30 °C / |Schlenk technique; |Inert atmosphere 2: 3 h / -30 °C / |Schlenk technique; |Inert atmosphere 3: hydrogenchloride; water / 0.5 h / 20 °C / |Schlenk technique; |Inert atmosphere View Scheme

phosphorus pentoxide

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