4-(氯甲基)-2,2-二甲基-1,3-二噁烷

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred solution of 3-[5-amino-4-(3-hydroxy-benzoyl)-pyrazol-1-yl]-N-cyclopropyl-4-methylbenzamide (75 mg, 0.2 mmol) and 4-chloromethyl-2,2-dimethyl-[1,3]dioxolane (36 mg, 0.24 mmol) were dissolved in DMF (4 ml) was added K2CO3 and the mixture stirred at 150° C. for 2 h in microwave oven. The solvent was removed, residue was dissolved in EtOAc, washed by water, brine, dried over Na2SO4, and concentrated. The residue was purified by column chromatography (EtOAc:Hex =3:1) and the product was obtained as a colorless oil (18 mg, 18%). HPLC (4 minute gradient) tR 2.57 min; MS m/z 491.11 [M+H]+. The solvent was removed residue was dissolved in EtOAc washed by water, brine dried over Na2SO4 concentrated The residue was purified by column chromatography (EtOAc:Hex =3:1)

反应条件: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred solution of 3-[5-amino-4-(3-hydroxy-benzoyl)-pyrazol-1-yl]-N-cyclopropyl-4-methylbenzamide (75 mg, 0.2 mmol) and 4-chloromethyl-2,2-dimethyl-[1,3]dioxolane (36 mg, 0.24 mmol) were dissolved in DMF (4 ml) was added K2CO3 and the mixture stirred at 150° C. for 2 h in microwave oven. The solvent was removed, residue was dissolved in EtOAc, washed by water, brine, dried over Na2SO4, and concentrated. The residue was purified by column chromatography (EtOAc:Hex =3:1) and the product was obtained as a colorless oil (18 mg, 18%). HPLC (4 minute gradient) tR 2.57 min; MS m/z 491.11 [M+H]+. The solvent was removed residue was dissolved in EtOAc washed by water, brine dried over Na2SO4 concentrated The residue was purified by column chromatography (EtOAc:Hex =3:1)

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

实验步骤: To a stirred room temperature solution of indole (5.9 g, 50 mmol) in THF (100 mL) was added sodium hydride (2.4 g of 60% in mineral oil, 60 mmol) in one portion. After 30 minutes, 4-chloromethyl-2,2-dimethyl-1,3-dioxolane (10.6 mL, 75 mmol) was added followed by tetra-n-butylammonium iodide (1.9 g, 5 mmol) and the mixture was warmed at reflux. After 24 hours, LCMS showed about 50% conversion [MS m/z 232 (MH+)]. Additional 4-chloromethyl-2,2-dimethyl-1,3-dioxolane (11.4 mL) was added and the refluxing continued. After 18 hours, the mixture was cooled, diluted with THF (300 mL), filtered, and concentrated in vacuo to afford a brown oil. The residue was purified by column chromatography over silica gel eluting with 0-100% methylene chloride in hexanes and the product-rich fractions were collected to afford 3.3 g of 1-(2,2-dimethyl-1,3-dioxolan-4-ylmethyl)-1H-indole as a brownish oil. the mixture was warmed at reflux After 24 hours After 18 hours the mixture was cooled filtered concentrated in vacuo to afford a brown oil The residue was purified by column chromatography over silica gel eluting with 0-100% methylene chloride in hexanes the product-rich fractions were collected

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

实验步骤: To a stirred room temperature solution of indole (5.9 g, 50 mmol) in THF (100 mL) was added sodium hydride (2.4 g of 60% in mineral oil, 60 mmol) in one portion. After 30 minutes, 4-chloromethyl-2,2-dimethyl-1,3-dioxolane (10.6 mL, 75 mmol) was added followed by tetra-n-butylammonium iodide (1.9 g, 5 mmol) and the mixture was warmed at reflux. After 24 hours, LCMS showed about 50% conversion [MS m/z 232 (MH+)]. Additional 4-chloromethyl-2,2-dimethyl-1,3-dioxolane (11.4 mL) was added and the refluxing continued. After 18 hours, the mixture was cooled, diluted with THF (300 mL), filtered, and concentrated in vacuo to afford a brown oil. The residue was purified by column chromatography over silica gel eluting with 0-100% methylene chloride in hexanes and the product-rich fractions were collected to afford 3.3 g of 1-(2,2-dimethyl-1,3-dioxolan-4-ylmethyl)-1H-indole as a brownish oil. the mixture was warmed at reflux After 24 hours After 18 hours the mixture was cooled filtered concentrated in vacuo to afford a brown oil The residue was purified by column chromatography over silica gel eluting with 0-100% methylene chloride in hexanes the product-rich fractions were collected

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

实验步骤: 15.05 g. of 2,2-dimethyl-4-chloromethyl-1,3-dioxolane is dissolved in 100 ml. DMF and 6.5 g. of NaN3 are added. The mixture is stirred at 50° overnight, cooled to room temperature, diluted with 300 ml. C6H6 and washed 5 times with water. The organic phase is dried and evaporated under reduced pressure to give 2,2-dimethyl-4-azidomethyl-1,3-dioxolane. diluted with 300 ml C6H6 and washed 5 times with water The organic phase is dried evaporated under reduced pressure

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

实验步骤: 15.05 g. of 2,2-dimethyl-4-chloromethyl-1,3-dioxolane is dissolved in 100 ml. DMF and 6.5 g. of NaN3 are added. The mixture is stirred at 50° overnight, cooled to room temperature, diluted with 300 ml. C6H6 and washed 5 times with water. The organic phase is dried and evaporated under reduced pressure to give 2,2-dimethyl-4-azidomethyl-1,3-dioxolane. diluted with 300 ml C6H6 and washed 5 times with water The organic phase is dried evaporated under reduced pressure