3,3,3-三氟-2,2-二甲基丙酸正丁酯

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 3,3,3-Trifluoro-2,2-dimethyl-propionic acid (3.0 g, 19.2 mmol) and a drop of DMF are dissolved in 30 mL of DCM and treated dropwise at RT with oxalyl chloride (1.85 mL, 21.1 mmol). After 2 h gas evolution ceases and the mixture is treated slowly with triethyl amine (5.36 mL, 38.4 mmol) followed by n-butanol (2.1 mL, 23 mmol). The mixture is stirred over night, the solvent evaporated and the residue stirred with hexanes. The solid is filtered off and the filtrate is evaporated to a brown-red oil. Kugelrohr distillation (10 mbar, 60-80° C. oven temperature) gives the title compound a colorless liquid. the solvent evaporated the residue stirred with hexanes The solid is filtered off the filtrate is evaporated to a brown-red oil Kugelrohr distillation (10 mbar, 60-80° C. oven temperature)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 3,3,3-Trifluoro-2,2-dimethyl-propionic acid (3.0 g, 19.2 mmol) and a drop of DMF are dissolved in 30 mL of DCM and treated dropwise at RT with oxalyl chloride (1.85 mL, 21.1 mmol). After 2 h gas evolution ceases and the mixture is treated slowly with triethyl amine (5.36 mL, 38.4 mmol) followed by n-butanol (2.1 mL, 23 mmol). The mixture is stirred over night, the solvent evaporated and the residue stirred with hexanes. The solid is filtered off and the filtrate is evaporated to a brown-red oil. Kugelrohr distillation (10 mbar, 60-80° C. oven temperature) gives the title compound a colorless liquid. the solvent evaporated the residue stirred with hexanes The solid is filtered off the filtrate is evaporated to a brown-red oil Kugelrohr distillation (10 mbar, 60-80° C. oven temperature)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 3,3,3-Trifluoro-2,2-dimethyl-propionic acid (3.0 g, 19.2 mmol) and a drop of DMF are dissolved in 30 mL of DCM and treated dropwise at RT with oxalyl chloride (1.85 mL, 21.1 mmol). After 2 h gas evolution ceases and the mixture is treated slowly with triethyl amine (5.36 mL, 38.4 mmol) followed by n-butanol (2.1 mL, 23 mmol). The mixture is stirred over night, the solvent evaporated and the residue stirred with hexanes. The solid is filtered off and the filtrate is evaporated to a brown-red oil. Kugelrohr distillation (10 mbar, 60-80° C. oven temperature) gives the title compound a colorless liquid. the solvent evaporated the residue stirred with hexanes The solid is filtered off the filtrate is evaporated to a brown-red oil Kugelrohr distillation (10 mbar, 60-80° C. oven temperature)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 3,3,3-Trifluoro-2,2-dimethyl-propionic acid (3.0 g, 19.2 mmol) and a drop of DMF are dissolved in 30 mL of DCM and treated dropwise at RT with oxalyl chloride (1.85 mL, 21.1 mmol). After 2 h gas evolution ceases and the mixture is treated slowly with triethyl amine (5.36 mL, 38.4 mmol) followed by n-butanol (2.1 mL, 23 mmol). The mixture is stirred over night, the solvent evaporated and the residue stirred with hexanes. The solid is filtered off and the filtrate is evaporated to a brown-red oil. Kugelrohr distillation (10 mbar, 60-80° C. oven temperature) gives the title compound a colorless liquid. the solvent evaporated the residue stirred with hexanes The solid is filtered off the filtrate is evaporated to a brown-red oil Kugelrohr distillation (10 mbar, 60-80° C. oven temperature)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 3,3,3-Trifluoro-2,2-dimethyl-propionic acid (3.0 g, 19.2 mmol) and a drop of DMF are dissolved in 30 mL of DCM and treated dropwise at RT with oxalyl chloride (1.85 mL, 21.1 mmol). After 2 h gas evolution ceases and the mixture is treated slowly with triethyl amine (5.36 mL, 38.4 mmol) followed by n-butanol (2.1 mL, 23 mmol). The mixture is stirred over night, the solvent evaporated and the residue stirred with hexanes. The solid is filtered off and the filtrate is evaporated to a brown-red oil. Kugelrohr distillation (10 mbar, 60-80° C. oven temperature) gives the title compound a colorless liquid. the solvent evaporated the residue stirred with hexanes The solid is filtered off the filtrate is evaporated to a brown-red oil Kugelrohr distillation (10 mbar, 60-80° C. oven temperature)