2,3-二氟氯苯

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 2.5M solution of n-butyllithium (2.69 ml, 6.73 mmol) in hexanes was added dropwise to a solution of 1-chloro-2,3-difluorobenzene (1 g, 6.73 mmol) in THF (25 mL) cooled to −78° C. After 45 min at −78° C., 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.253 g, 6.73 mmol) was added dropwise after which the reaction mixture was allowed to warm to ambient temperature. The reaction mixture was diluted with water and ethyl acetate, and the organic phase was extracted twice with water. The aqueous extracts were combined, acidified with 12N HCl to pH 3, and extracted with ethyl acetate. The organic extract was dried and concentrated under vacuum to yield the title compound as an oil product (0.93 g, 50% yield): 1H NMR (CDCl3) δ 7.42 (m, 1H), 7.17 (m, 1H), 1.37 (s, 12H). to warm to ambient temperature the organic phase was extracted twice with water extracted with ethyl acetate The organic extract was dried concentrated under vacuum

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 2.5M solution of n-butyllithium (2.69 ml, 6.73 mmol) in hexanes was added dropwise to a solution of 1-chloro-2,3-difluorobenzene (1 g, 6.73 mmol) in THF (25 mL) cooled to −78° C. After 45 min at −78° C., 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.253 g, 6.73 mmol) was added dropwise after which the reaction mixture was allowed to warm to ambient temperature. The reaction mixture was diluted with water and ethyl acetate, and the organic phase was extracted twice with water. The aqueous extracts were combined, acidified with 12N HCl to pH 3, and extracted with ethyl acetate. The organic extract was dried and concentrated under vacuum to yield the title compound as an oil product (0.93 g, 50% yield): 1H NMR (CDCl3) δ 7.42 (m, 1H), 7.17 (m, 1H), 1.37 (s, 12H). to warm to ambient temperature the organic phase was extracted twice with water extracted with ethyl acetate The organic extract was dried concentrated under vacuum

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 2.5 M solution of n-butyllithium (2.69 ml, 6.73 mmol) in hexanes was added dropwise to a solution of 1-chloro-2,3-difluorobenzene (1 g, 6.73 mmol) in THF (25 mL) cooled to −78° C. After 45 minutes at −78° C., 2-isopropoxy-4,4,5,5-tetramethyl[1,3,2]dioxaborolane (1.253 g, 6.73 mmol) was added dropwise after which the reaction mixture was allowed to warm to ambient temperature. The reaction mixture was diluted with water and ethyl acetate and the organic phase was extracted twice with water. The aqueous extracts were combined and acidified with 12N HCl to pH 3. The product was then extracted with ethyl acetate. The organic phase was dried and concentrated under vacuum to yield the title compound as an oil product (0.93 g, 50% yield): 1H NMR (CDCl3): δ 7.42 (m, 1H), 7.17 (m, 1H), 1.37 (s, 12H). to warm to ambient temperature the organic phase was extracted twice with water The product was then extracted with ethyl acetate The organic phase was dried concentrated under vacuum

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 2.5 M solution of n-butyllithium (2.69 ml, 6.73 mmol) in hexanes was added dropwise to a solution of 1-chloro-2,3-difluorobenzene (1 g, 6.73 mmol) in THF (25 mL) cooled to −78° C. After 45 minutes at −78° C., 2-isopropoxy-4,4,5,5-tetramethyl[1,3,2]dioxaborolane (1.253 g, 6.73 mmol) was added dropwise after which the reaction mixture was allowed to warm to ambient temperature. The reaction mixture was diluted with water and ethyl acetate and the organic phase was extracted twice with water. The aqueous extracts were combined and acidified with 12N HCl to pH 3. The product was then extracted with ethyl acetate. The organic phase was dried and concentrated under vacuum to yield the title compound as an oil product (0.93 g, 50% yield): 1H NMR (CDCl3): δ 7.42 (m, 1H), 7.17 (m, 1H), 1.37 (s, 12H). to warm to ambient temperature the organic phase was extracted twice with water The product was then extracted with ethyl acetate The organic phase was dried concentrated under vacuum

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 2.5M solution of n-butyllithium (2.69 ml, 6.73 mmol) in hexanes was added dropwise to a solution of 1-chloro-2,3-difluorobenzene (1 g, 6.73 mmol) in THF (25 mL) cooled to −78° C. After 45 min at −78° C., 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.253 g, 6.73 mmol) was added dropwise after which the reaction mixture was allowed to warm to ambient temperature. The reaction mixture was diluted with water and ethyl acetate, and the organic phase was extracted twice with water. The aqueous extracts were combined, acidified with 12N HCl to pH 3, and extracted with ethyl acetate. The organic extract was dried and concentrated under vacuum to yield the title compound as an oil product (0.93 g, 50% yield): 1H NMR (CDCl3) δ 7.42 (m, 1H), 7.17 (m, 1H), 1.37 (s, 12H). to warm to ambient temperature the organic phase was extracted twice with water extracted with ethyl acetate The organic extract was dried concentrated under vacuum

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 2.5M solution of n-butyllithium (2.69 ml, 6.73 mmol) in hexanes was added dropwise to a solution of 1-chloro-2,3-difluorobenzene (1 g, 6.73 mmol) in THF (25 mL) cooled to −78° C. After 45 min at −78° C., 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.253 g, 6.73 mmol) was added dropwise after which the reaction mixture was allowed to warm to ambient temperature. The reaction mixture was diluted with water and ethyl acetate, and the organic phase was extracted twice with water. The aqueous extracts were combined, acidified with 12N HCl to pH 3, and extracted with ethyl acetate. The organic extract was dried and concentrated under vacuum to yield the title compound as an oil product (0.93 g, 50% yield): 1H NMR (CDCl3) δ 7.42 (m, 1H), 7.17 (m, 1H), 1.37 (s, 12H). to warm to ambient temperature the organic phase was extracted twice with water extracted with ethyl acetate The organic extract was dried concentrated under vacuum

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 2.5M solution of n-butyllithium (2.69 ml, 6.73 mmol) in hexanes was added dropwise to a solution of 1-chloro-2,3-difluorobenzene (1 g, 6.73 mmol) in THF (25 mL) cooled to −78° C. After 45 min at −78° C., 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.253 g, 6.73 mmol) was added dropwise after which the reaction mixture was allowed to warm to ambient temperature. The reaction mixture was diluted with water and ethyl acetate, and the organic phase was extracted twice with water. The aqueous extracts were combined, acidified with 12N HCl to pH 3, and extracted with ethyl acetate. The organic extract was dried and concentrated under vacuum to yield the title compound as an oil product (0.93 g, 50% yield): 1H NMR (CDCl3) δ 7.42 (m, 1H), 7.17 (m, 1H), 1.37 (s, 12H). to warm to ambient temperature the organic phase was extracted twice with water extracted with ethyl acetate The organic extract was dried concentrated under vacuum

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 2.5M solution of n-butyllithium (2.69 ml, 6.73 mmol) in hexanes was added dropwise to a solution of 1-chloro-2,3-difluorobenzene (1 g, 6.73 mmol) in THF (25 mL) cooled to −78° C. After 45 min at −78° C., 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.253 g, 6.73 mmol) was added dropwise after which the reaction mixture was allowed to warm to ambient temperature. The reaction mixture was diluted with water and ethyl acetate, and the organic phase was extracted twice with water. The aqueous extracts were combined, acidified with 12N HCl to pH 3, and extracted with ethyl acetate. The organic extract was dried and concentrated under vacuum to yield the title compound as an oil product (0.93 g, 50% yield): 1H NMR (CDCl3) δ 7.42 (m, 1H), 7.17 (m, 1H), 1.37 (s, 12H). to warm to ambient temperature the organic phase was extracted twice with water extracted with ethyl acetate The organic extract was dried concentrated under vacuum

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 2.5 M solution of n-butyllithium (2.69 ml, 6.73 mmol) in hexanes was added dropwise to a solution of 1-chloro-2,3-difluorobenzene (1 g, 6.73 mmol) in THF (25 mL) cooled to −78° C. After 45 min at −78° C., 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.253 g, 6.73 mmol) was added dropwise after which the reaction mixture was allowed to warm to ambient temperature. The reaction mixture was diluted with water and ethyl acetate; and the organic phase was extracted twice with water. The aqueous extracts were combined and acidified with 12N HCl to pH 3. The product was then extracted with ethyl acetate. The organic phase was dried and concentrated under vacuum to yield the title compound as an oil product (0.93 g, 50% yield): 1H NMR (CDCl3): δ 7.42 (m, 1H), 7.17 (m, 1H), 1.37 (s, 12H). to warm to ambient temperature and the organic phase was extracted twice with water The product was then extracted with ethyl acetate The organic phase was dried concentrated under vacuum

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 2.5 M solution of n-butyllithium (2.69 ml, 6.73 mmol) in hexanes was added dropwise to a solution of 1-chloro-2,3-difluorobenzene (1 g, 6.73 mmol) in THF (25 mL) cooled to −78° C. After 45 min at −78° C., 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.253 g, 6.73 mmol) was added dropwise after which the reaction mixture was allowed to warm to ambient temperature. The reaction mixture was diluted with water and ethyl acetate; and the organic phase was extracted twice with water. The aqueous extracts were combined and acidified with 12N HCl to pH 3. The product was then extracted with ethyl acetate. The organic phase was dried and concentrated under vacuum to yield the title compound as an oil product (0.93 g, 50% yield): 1H NMR (CDCl3): δ 7.42 (m, 1H), 7.17 (m, 1H), 1.37 (s, 12H). to warm to ambient temperature and the organic phase was extracted twice with water The product was then extracted with ethyl acetate The organic phase was dried concentrated under vacuum