2,2-diethoxy-1-phenylethanone

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2,2-diethoxy-1-phenylethanone (6.25 g, 0.0300 mol) and semicarbazide hydrochloride (3.34 g, 0.0300 mol) in ethanol-water (1:1 v/v, 50 mL) was heated at 120° C. for 3 h. The mixture was concentrated under reduced pressure. The residue was treated with methanol, filtered, and washed with methanol to give the desired product (3.40 g, 59.3%). Analytical LCMS: (M+H)+=192.1. 1H-NMR (400 MHz, DMSO-D6): δ 11.03 (s, 1H), 7.97-8.01 (m, 2H), 7.61-7.67 (m, 1H), 7.50-7.56 (m, 2H), 7.34 (b, 1H), 6.54 (b, 2H). The mixture was concentrated under reduced pressure The residue was treated with methanol filtered washed with methanol

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2,2-diethoxy-1-phenylethanone (6.25 g, 0.0300 mol) and semicarbazide hydrochloride (3.34 g, 0.0300 mol) in ethanol-water (1:1 v/v, 50 mL) was heated at 120° C. for 3 h. The mixture was concentrated under reduced pressure. The residue was treated with methanol, filtered, and washed with methanol to give the desired product (3.40 g, 59.3%). Analytical LCMS: (M+H)+=192.1. 1H-NMR (400 MHz, DMSO-D6): δ 11.03 (s, 1H), 7.97-8.01 (m, 2H), 7.61-7.67 (m, 1H), 7.50-7.56 (m, 2H), 7.34 (b, 1H), 6.54 (b, 2H). The mixture was concentrated under reduced pressure The residue was treated with methanol filtered washed with methanol

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2,2-diethoxy acetophenone, 2-hydroxy-2-methyl-1-phenyl-on, 1-(4-isopropylphenyl)-2-hudroxy-2-methyl propane-1-on, 1-(4-dodecylphenyl)-2-hydroxy-methyl propane-1-on

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 144.3 g (0.6 mol) of 2-chloro-3,4-dimethyl-5-pivaloylaminopyridine are dissolved in 2.9 1 of abs. THF and the solution is treated under argon at -78° C. with 127 ml of a 10.4N solution of n-BuLl in n-hexane (1.32 mmol). The mixture is stirred at 0° C. for 3 h, 129.8 ml (0.6 mol) of 2,2-diethoxyacetophenone are slowly added at -78° C. and the mixture is stirred at room temperature overnight. It is then added to water and extracted 3 times with ethyl acetate, dried and concentrated on a rotary evaporator. The purity is sufficient for further reaction. After chromatography, 180.5 g (67%) of the title compound are obtained. M.p.: 133° C. the mixture is stirred at room temperature overnight extracted 3 times with ethyl acetate dried concentrated on a rotary evaporator The purity is sufficient for further reaction

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 144.3 g (0.6 mol) of 2-chloro-3,4-dimethyl-5-pivaloylaminopyridine are dissolved in 2.9 1 of abs. THF and the solution is treated under argon at -78° C. with 127 ml of a 10.4N solution of n-BuLl in n-hexane (1.32 mmol). The mixture is stirred at 0° C. for 3 h, 129.8 ml (0.6 mol) of 2,2-diethoxyacetophenone are slowly added at -78° C. and the mixture is stirred at room temperature overnight. It is then added to water and extracted 3 times with ethyl acetate, dried and concentrated on a rotary evaporator. The purity is sufficient for further reaction. After chromatography, 180.5 g (67%) of the title compound are obtained. M.p.: 133° C. the mixture is stirred at room temperature overnight extracted 3 times with ethyl acetate dried concentrated on a rotary evaporator The purity is sufficient for further reaction

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 144.3 g (0.6 mol) of 2-chloro-3,4-dimethyl-5-pivaloylaminopyridine are dissolved in 2.9 1 of abs. THF and the solution is treated under argon at -78° C. with 127 ml of a 10.4N solution of n-BuLl in n-hexane (1.32 mmol). The mixture is stirred at 0° C. for 3 h, 129.8 ml (0.6 mol) of 2,2-diethoxyacetophenone are slowly added at -78° C. and the mixture is stirred at room temperature overnight. It is then added to water and extracted 3 times with ethyl acetate, dried and concentrated on a rotary evaporator. The purity is sufficient for further reaction. After chromatography, 180.5 g (67%) of the title compound are obtained. M.p.: 133° C. the mixture is stirred at room temperature overnight extracted 3 times with ethyl acetate dried concentrated on a rotary evaporator The purity is sufficient for further reaction

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2,2-diethoxy-1-phenylethanone (6.25 g, 0.0300 mol) and semicarbazide hydrochloride (3.34 g, 0.0300 mol) in ethanol-water (1:1 v/v, 50 mL) was heated at 120° C. for 3 h. The mixture was concentrated under reduced pressure. The residue was treated with methanol, filtered, and washed with methanol to give the desired product (3.40 g, 59.3%). Analytical LCMS: (M+H)+=192.1. 1H-NMR (400 MHz, DMSO-D6): δ 11.03 (s, 1H), 7.97-8.01 (m, 2H), 7.61-7.67 (m, 1H), 7.50-7.56 (m, 2H), 7.34 (b, 1H), 6.54 (b, 2H). The mixture was concentrated under reduced pressure The residue was treated with methanol filtered washed with methanol

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2,2-diethoxy-1-phenylethanone (6.25 g, 0.0300 mol) and semicarbazide hydrochloride (3.34 g, 0.0300 mol) in ethanol-water (1:1 v/v, 50 mL) was heated at 120° C. for 3 h. The mixture was concentrated under reduced pressure. The residue was treated with methanol, filtered, and washed with methanol to give the desired product (3.40 g, 59.3%). Analytical LCMS: (M+H)+=192.1. 1H-NMR (400 MHz, DMSO-D6): δ 11.03 (s, 1H), 7.97-8.01 (m, 2H), 7.61-7.67 (m, 1H), 7.50-7.56 (m, 2H), 7.34 (b, 1H), 6.54 (b, 2H). The mixture was concentrated under reduced pressure The residue was treated with methanol filtered washed with methanol

Conditions: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 2,2-diethoxy-1-phenylethanone (6.25 g, 0.0300 mol) and semicarbazide hydrochloride (3.34 g, 0.0300 mol) in ethanol-water (1:1 v/v, 50 mL) was heated at 120° C. for 3 h. The mixture was concentrated under reduced pressure. The residue was treated with methanol, filtered, and washed with methanol to give the desired product (3.40 g, 59.3%). Analytical LCMS: (M+H)+=192.1. 1H-NMR (400 MHz, DMSO-D6): δ 11.03 (s, 1H), 7.97-8.01 (m, 2H), 7.61-7.67 (m, 1H), 7.50-7.56 (m, 2H), 7.34 (b, 1H), 6.54 (b, 2H). The mixture was concentrated under reduced pressure The residue was treated with methanol filtered washed with methanol

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2,2-diethoxy acetophenone, 2-hydroxy-2-methyl-1-phenyl-on, 1-(4-isopropylphenyl)-2-hudroxy-2-methyl propane-1-on, 1-(4-dodecylphenyl)-2-hydroxy-methyl propane-1-on