6-O-tert-butyl 1-O-methyl hexanedioate

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

实验步骤: Lithium hydroxide (0.53 g, 22 mmol) was added to a solution of hexanedioic acid tert-butyl ester methyl ester (4.8 g, 22 mmol) in 3:1 methanol-water (80 mL), and the resulting mixture was stirred at room temperature for 16 hours. The mixture was evaporated under vacuum. The residue was partitioned between water (60 mL) and methylene chloride (75 mL), and the aqueous phase was washed with methylene chloride (3×75 mL) and evaporated, providing 4.0 g of hexanedioic acid mono-tert-butyl ester, lithium salt; 1H NMR (D2O) δ 1.45 (s, 9H), 1.54-1.58 (m, 4H), 2.15-2.20 (m, 2H), 2.25-2.34 (m, 2H). The mixture was evaporated under vacuum The residue was partitioned between water (60 mL) and methylene chloride (75 mL) the aqueous phase was washed with methylene chloride (3×75 mL) evaporated

反应条件: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of adipic acid monomethyl ester (4.8 g, 30 mmol) in DMF (30 mL), was added CDI (4.9 g, 30 mmol), and the resulting mixture was stirred under N2 at 40° C. for 1 hour. t-Butanol (4.4 g, 60 mmol) and DBU (4.6 g, 30 mmol) were added, and stirring proceeded at 40° C. for 70 hours. The mixture was poured into ether (100 mL), and this mixture was washed with 10% aq. HOAc (100 mL), 10% aq. K2CO3 (100 mL), and water (3×100 mL), dried (MgSO4), and evaporated, providing 5.1 g of hexanedioic acid tert-butyl ester methyl ester, in 78% yield; 1H NMR (CDCl3) δ 1.44 (s, 9H), 1.59-1.67 (m, 4H), 2.21-2.26 (m, 2H), 3.67 (s, 3H). stirring proceeded at 40° C. for 70 hours this mixture was washed with 10% aq. HOAc (100 mL), 10% aq. K2CO3 (100 mL), and water (3×100 mL) dried (MgSO4) evaporated

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

实验步骤: Lithium hydroxide (0.53 g, 22 mmol) was added to a solution of hexanedioic acid tert-butyl ester methyl ester (4.8 g, 22 mmol) in 3:1 methanol-water (80 mL), and the resulting mixture was stirred at room temperature for 16 hours. The mixture was evaporated under vacuum. The residue was partitioned between water (60 mL) and methylene chloride (75 mL), and the aqueous phase was washed with methylene chloride (3×75 mL) and evaporated, providing 4.0 g of hexanedioic acid mono-tert-butyl ester, lithium salt; 1H NMR (D2O) δ 1.45 (s, 9H), 1.54-1.58 (m, 4H), 2.15-2.20 (m, 2H), 2.25-2.34 (m, 2H). The mixture was evaporated under vacuum The residue was partitioned between water (60 mL) and methylene chloride (75 mL) the aqueous phase was washed with methylene chloride (3×75 mL) evaporated

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

实验步骤: Lithium hydroxide (0.53 g, 22 mmol) was added to a solution of hexanedioic acid tert-butyl ester methyl ester (4.8 g, 22 mmol) in 3:1 methanol-water (80 mL), and the resulting mixture was stirred at room temperature for 16 hours. The mixture was evaporated under vacuum. The residue was partitioned between water (60 mL) and methylene chloride (75 mL), and the aqueous phase was washed with methylene chloride (3×75 mL) and evaporated, providing 4.0 g of hexanedioic acid mono-tert-butyl ester, lithium salt; 1H NMR (D2O) δ 1.45 (s, 9H), 1.54-1.58 (m, 4H), 2.15-2.20 (m, 2H), 2.25-2.34 (m, 2H). The mixture was evaporated under vacuum The residue was partitioned between water (60 mL) and methylene chloride (75 mL) the aqueous phase was washed with methylene chloride (3×75 mL) evaporated

反应条件: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of adipic acid monomethyl ester (4.8 g, 30 mmol) in DMF (30 mL), was added CDI (4.9 g, 30 mmol), and the resulting mixture was stirred under N2 at 40° C. for 1 hour. t-Butanol (4.4 g, 60 mmol) and DBU (4.6 g, 30 mmol) were added, and stirring proceeded at 40° C. for 70 hours. The mixture was poured into ether (100 mL), and this mixture was washed with 10% aq. HOAc (100 mL), 10% aq. K2CO3 (100 mL), and water (3×100 mL), dried (MgSO4), and evaporated, providing 5.1 g of hexanedioic acid tert-butyl ester methyl ester, in 78% yield; 1H NMR (CDCl3) δ 1.44 (s, 9H), 1.59-1.67 (m, 4H), 2.21-2.26 (m, 2H), 3.67 (s, 3H). stirring proceeded at 40° C. for 70 hours this mixture was washed with 10% aq. HOAc (100 mL), 10% aq. K2CO3 (100 mL), and water (3×100 mL) dried (MgSO4) evaporated

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

实验步骤: Lithium hydroxide (0.53 g, 22 mmol) was added to a solution of hexanedioic acid tert-butyl ester methyl ester (4.8 g, 22 mmol) in 3:1 methanol-water (80 mL), and the resulting mixture was stirred at room temperature for 16 hours. The mixture was evaporated under vacuum. The residue was partitioned between water (60 mL) and methylene chloride (75 mL), and the aqueous phase was washed with methylene chloride (3×75 mL) and evaporated, providing 4.0 g of hexanedioic acid mono-tert-butyl ester, lithium salt; 1H NMR (D2O) δ 1.45 (s, 9H), 1.54-1.58 (m, 4H), 2.15-2.20 (m, 2H), 2.25-2.34 (m, 2H). The mixture was evaporated under vacuum The residue was partitioned between water (60 mL) and methylene chloride (75 mL) the aqueous phase was washed with methylene chloride (3×75 mL) evaporated

反应条件: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of adipic acid monomethyl ester (4.8 g, 30 mmol) in DMF (30 mL), was added CDI (4.9 g, 30 mmol), and the resulting mixture was stirred under N2 at 40° C. for 1 hour. t-Butanol (4.4 g, 60 mmol) and DBU (4.6 g, 30 mmol) were added, and stirring proceeded at 40° C. for 70 hours. The mixture was poured into ether (100 mL), and this mixture was washed with 10% aq. HOAc (100 mL), 10% aq. K2CO3 (100 mL), and water (3×100 mL), dried (MgSO4), and evaporated, providing 5.1 g of hexanedioic acid tert-butyl ester methyl ester, in 78% yield; 1H NMR (CDCl3) δ 1.44 (s, 9H), 1.59-1.67 (m, 4H), 2.21-2.26 (m, 2H), 3.67 (s, 3H). stirring proceeded at 40° C. for 70 hours this mixture was washed with 10% aq. HOAc (100 mL), 10% aq. K2CO3 (100 mL), and water (3×100 mL) dried (MgSO4) evaporated

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

实验步骤: Lithium hydroxide (0.53 g, 22 mmol) was added to a solution of hexanedioic acid tert-butyl ester methyl ester (4.8 g, 22 mmol) in 3:1 methanol-water (80 mL), and the resulting mixture was stirred at room temperature for 16 hours. The mixture was evaporated under vacuum. The residue was partitioned between water (60 mL) and methylene chloride (75 mL), and the aqueous phase was washed with methylene chloride (3×75 mL) and evaporated, providing 4.0 g of hexanedioic acid mono-tert-butyl ester, lithium salt; 1H NMR (D2O) δ 1.45 (s, 9H), 1.54-1.58 (m, 4H), 2.15-2.20 (m, 2H), 2.25-2.34 (m, 2H). The mixture was evaporated under vacuum The residue was partitioned between water (60 mL) and methylene chloride (75 mL) the aqueous phase was washed with methylene chloride (3×75 mL) evaporated

反应条件: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of adipic acid monomethyl ester (4.8 g, 30 mmol) in DMF (30 mL), was added CDI (4.9 g, 30 mmol), and the resulting mixture was stirred under N2 at 40° C. for 1 hour. t-Butanol (4.4 g, 60 mmol) and DBU (4.6 g, 30 mmol) were added, and stirring proceeded at 40° C. for 70 hours. The mixture was poured into ether (100 mL), and this mixture was washed with 10% aq. HOAc (100 mL), 10% aq. K2CO3 (100 mL), and water (3×100 mL), dried (MgSO4), and evaporated, providing 5.1 g of hexanedioic acid tert-butyl ester methyl ester, in 78% yield; 1H NMR (CDCl3) δ 1.44 (s, 9H), 1.59-1.67 (m, 4H), 2.21-2.26 (m, 2H), 3.67 (s, 3H). stirring proceeded at 40° C. for 70 hours this mixture was washed with 10% aq. HOAc (100 mL), 10% aq. K2CO3 (100 mL), and water (3×100 mL) dried (MgSO4) evaporated

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

实验步骤: Lithium hydroxide (0.53 g, 22 mmol) was added to a solution of hexanedioic acid tert-butyl ester methyl ester (4.8 g, 22 mmol) in 3:1 methanol-water (80 mL), and the resulting mixture was stirred at room temperature for 16 hours. The mixture was evaporated under vacuum. The residue was partitioned between water (60 mL) and methylene chloride (75 mL), and the aqueous phase was washed with methylene chloride (3×75 mL) and evaporated, providing 4.0 g of hexanedioic acid mono-tert-butyl ester, lithium salt; 1H NMR (D2O) δ 1.45 (s, 9H), 1.54-1.58 (m, 4H), 2.15-2.20 (m, 2H), 2.25-2.34 (m, 2H). The mixture was evaporated under vacuum The residue was partitioned between water (60 mL) and methylene chloride (75 mL) the aqueous phase was washed with methylene chloride (3×75 mL) evaporated

反应条件: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of adipic acid monomethyl ester (4.8 g, 30 mmol) in DMF (30 mL), was added CDI (4.9 g, 30 mmol), and the resulting mixture was stirred under N2 at 40° C. for 1 hour. t-Butanol (4.4 g, 60 mmol) and DBU (4.6 g, 30 mmol) were added, and stirring proceeded at 40° C. for 70 hours. The mixture was poured into ether (100 mL), and this mixture was washed with 10% aq. HOAc (100 mL), 10% aq. K2CO3 (100 mL), and water (3×100 mL), dried (MgSO4), and evaporated, providing 5.1 g of hexanedioic acid tert-butyl ester methyl ester, in 78% yield; 1H NMR (CDCl3) δ 1.44 (s, 9H), 1.59-1.67 (m, 4H), 2.21-2.26 (m, 2H), 3.67 (s, 3H). stirring proceeded at 40° C. for 70 hours this mixture was washed with 10% aq. HOAc (100 mL), 10% aq. K2CO3 (100 mL), and water (3×100 mL) dried (MgSO4) evaporated

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

实验步骤: Lithium hydroxide (0.53 g, 22 mmol) was added to a solution of hexanedioic acid tert-butyl ester methyl ester (4.8 g, 22 mmol) in 3:1 methanol-water (80 mL), and the resulting mixture was stirred at room temperature for 16 hours. The mixture was evaporated under vacuum. The residue was partitioned between water (60 mL) and methylene chloride (75 mL), and the aqueous phase was washed with methylene chloride (3×75 mL) and evaporated, providing 4.0 g of hexanedioic acid mono-tert-butyl ester, lithium salt; 1H NMR (D2O) δ 1.45 (s, 9H), 1.54-1.58 (m, 4H), 2.15-2.20 (m, 2H), 2.25-2.34 (m, 2H). The mixture was evaporated under vacuum The residue was partitioned between water (60 mL) and methylene chloride (75 mL) the aqueous phase was washed with methylene chloride (3×75 mL) evaporated