Methanesulfonic acid, trifluoro-, 3,4-dihydro-1-naphthalenyl ester

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: (10,11-Dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-10-yl)-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-methanone of Example 5, Step B (0.760 g, 1.89 mmol), 3,4-dihydro-naphthalen-1-yl trifluoromethanesulfonate (0.579 g, 2.08 mmol) and dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium (II) dichloromethane adduct (0.0460 g, 0.0567 mmol) were combined in N,N-dimethylformamide (9.5 mL). Aqueous sodium carbonate (2 M. 4.73 mL, 9.45 mmol) was added and the was heated to 60° C. for 3 hours. After cooling to room temperature, the mixture was diluted with ethyl acetate and washed with water and brine. The organic phase was dried over anhydrous magnesium sulfate, filtered and concentrated and the residue purified by flash column chromatography on silica gel eluting with 30% ethyl acetate in hexane. Recrystallization from petroleum ether afforded 0.740 g of the title compound as white crystals, m.p.108° C. After cooling to room temperature washed with water and brine The organic phase was dried over anhydrous magnesium sulfate filtered concentrated the residue purified by flash column chromatography on silica gel eluting with 30% ethyl acetate in hexane Recrystallization from petroleum ether

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: (10,11-Dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-10-yl)-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-methanone of Example 4, Step B (0.760 g, 1.89 mmol), 3,4-dihydro-naphthalen-1-yltrifluoromethanesulfonate (0.579 g, 2.08 mmol) and dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium (II) dichloromethane adduct (0.0460 g, 0.0567 mmol) were combined in N,N-dimethylformamide (9.5 mL). Aqueous sodium carbonate (2M, 4.73 mL, 9.45 mmol) was added and the was heated to 60° C. for 3 hours. After cooling to room temperature, the mixture was diluted with ethyl acetate and washed with water and brine. The organic phase was dried over anhydrous magnesium sulfate, filtered and concentrated and the residue purified by flash column chromatography on silica gel eluting with 30% ethyl acetate in hexane. Recrystallization from hexane afforded 0.740 g of the title compound as white crystals, m.p.108° C. After cooling to room temperature washed with water and brine The organic phase was dried over anhydrous magnesium sulfate filtered concentrated the residue purified by flash column chromatography on silica gel eluting with 30% ethyl acetate in hexane Recrystallization from hexane

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: (10,11-Dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-10-yl)-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-methanone of Example 2, Step B (0.760 g, 1.89 mmol), 3,4-dihydro-naphthalen-1-yl trifluoromethanesulfonate (0.579 g, 2.08 mmol) and dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium(II) dichloromethane adduct (0.046 g, 0.0567 mmol) were combined in N,N-dimethylformamide (9.5 mL). 2 M aqueous sodium carbonate (4.73 mL, 9.45 mmol) was added and the reaction heated to 60° C. for 3 hours. After cooling to room temperature, the reaction mixture was diluted with ethyl acetate (100 mL) and washed with water and brine. The organic phase was dried over anhydrous magnesium sulfate, filtered and concentrated and the residue purified by flash column chromatography (silica, 30% ethyl acetate in hexanes). Recrystallization from petroleum ether afforded the title compound (0.740 g) as white crystals identical to the material of Example 31. After cooling to room temperature washed with water and brine The organic phase was dried over anhydrous magnesium sulfate filtered concentrated the residue purified by flash column chromatography (silica, 30% ethyl acetate in hexanes) Recrystallization from petroleum ether

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

Procedure: 3-Methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzoic acid methyl ester of Example 28, Step A (5.00 g, 18.1 mmol) and 3,4-dihydronaphthalen-1-yl trifluoromethanesulfonate (5.54 g, 19.9 mmol) were reacted in the manner of Example 1, Step F. Purification by flash column chromatography on silica gel, eluting with 10% ethyl acetate in hexane, afforded the title compound (4.90 g) as a light yellow oil. Purification by flash column chromatography on silica gel eluting with 10% ethyl acetate in hexane

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

Procedure: 4-(Tri-n-butyl-stannyl)-benzoic acid ethyl ester of Example 15, Step A (2.58 g, 5.88 mmol) and 3,4-dihydro-naphthalen-1-yl trifluoromethanesulfonate (1.80 g, 6.47 mmol) were reacted in the manner of Example 15, Step B. Purification by flash column chromatography on silica gel, eluting with a solvent gradient of from 0 to 10% ethyl acetate in hexane followed by recrystallization from pentane (−20° C.) afforded the title compound (1.53 g) as slightly yellow crystals, m.p. 81° C. Purification by flash column chromatography on silica gel eluting with a solvent gradient of from 0 to 10% ethyl acetate in hexane followed by recrystallization from pentane (−20° C.)

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: (10,11-Dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-10-yl)-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-methanone of Example 2, Step B (0.760 g, 1.89 mmol), 3,4-dihydro-naphthalen-1-yl trifluoromethanesulfonate (0.579 g, 2.08 mmol) and dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium (II) dichloromethane adduct (0.046 g, 0.057 mmol) were combined in N,N-dimethylformamide (9.5 mL). Aqueous sodium carbonate (2M, 4.73 mL, 9.45 mmol) was added and the was heated to 60° C. for 3 hours. After cooling to room temperature, the mixture was diluted with ethyl acetate and washed with water and brine. The organic phase was dried over anhydrous magnesium sulfate, filtered and concentrated and the residue purified by flash column chromatography on silica gel eluting with 30% ethyl acetate in hexane. Recrystallization from hexane afforded 0.740 g of the title compound as white crystals, m.p. 108° C. After cooling to room temperature washed with water and brine The organic phase was dried over anhydrous magnesium sulfate filtered concentrated the residue purified by flash column chromatography on silica gel eluting with 30% ethyl acetate in hexane Recrystallization from hexane

Conditions: temp:85.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 3,4-dihydro-1-(trifluoromethylsulfonyloxy)naphthalene (1.0 g), 3-(4,4-dimethyl-4,5-dihydrooxazol-2-yl)phenyl-dihydroxyborane (1.1 g), tetrakis(triphenylphosphine)palladium(0) (0.21 g), lithium chloride (0.46 g), 2M sodium carbonate aqueous solution (5.1 ml) in 1,2-dimethoxyethane (12 ml) was heated at 85° C. and stirred vigorously for 3 hours under nitrogen atmosphere. After being cooled to room temperature, the reaction mixture was concentrated under reduced pressure. The residue was partitioned between dichloromethane (35 ml) and 2N sodium carbonate aqueous solution (35 ml) and conc. ammonia solution (2.0 ml). The aqueous layer was extracted again with dichloromethane (35 ml) and the combined organic extracts are dried over magnesium sulfate. The solvent was evaporated in vacuo and the residue was purified by column chromatography on silica gel eluting with a mixture of toluene and ethyl acetate (30:1). The eluted fractions containing the desired product were collected and evaporated in vacuo to give 2-[3-(3,4-dihydro-1-naphthyl)phenyl]-4,4-dimethyl-4,5-dihydrooxazole (1.05 g). After being cooled to room temperature the reaction mixture was concentrated under reduced pressure The residue was partitioned between dichloromethane (35 ml) and 2N sodium carbonate aqueous solution (35 ml) and conc. ammonia solution (2.0 ml) The aqueous layer was extracted again with dichloromethane (35 ml) the combined organic extracts are dried over magnesium sulfate The solvent was evaporated in vacuo the residue was purified by column chromatography on silica gel eluting with a mixture of toluene and ethyl acetate (30:1) The eluted fractions containing the desired product were collected evaporated in vacuo

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: (10,11-Dihydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-10-yl)-[3-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-methanone of Example 5, Step B (0.760 g, 1.89 mmol), 3,4-dihydro-naphthalen-1-yl trifluoromethanesulfonate (0.579 g, 2.08 mmol) and dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium (II) dichloromethane adduct (0.0460 g, 0.0567 mmol) were combined in N,N-dimethylformamide (9.5 mL). Aqueous sodium carbonate (2 M. 4.73 mL, 9.45 mmol) was added and the was heated to 60° C. for 3 hours. After cooling to room temperature, the mixture was diluted with ethyl acetate and washed with water and brine. The organic phase was dried over anhydrous magnesium sulfate, filtered and concentrated and the residue purified by flash column chromatography on silica gel eluting with 30% ethyl acetate in hexane. Recrystallization from petroleum ether afforded 0.740 g of the title compound as white crystals, m.p.108° C. After cooling to room temperature washed with water and brine The organic phase was dried over anhydrous magnesium sulfate filtered concentrated the residue purified by flash column chromatography on silica gel eluting with 30% ethyl acetate in hexane Recrystallization from petroleum ether