2-bromo-1-ethoxy-4-fluorobenzene

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

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

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

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

Procedure: The compound was prepared from 4-amino-2-ethylsulfanyl-pyrimidine-5-carboxylic acid methoxy-methyl-amide, Example 1, and 2-bromo-1-ethoxy-4-fluoro-benzene (prepared from 2-bromo-4-fluoro-phenol, Aldrich) in an analogous manner as described in Example 169.

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

Procedure: The compound was prepared from 4-amino-2-ethylsulfanyl-pyrimidine-5-carboxylic acid methoxy-methyl-amide, Example 1, and 2-bromo-1-ethoxy-4-fluoro-benzene (prepared from 2-bromo-4-fluoro-phenol, Aldrich) in an analogous manner as described in Example 169.

Conditions: temp:-75.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The 2-bromo-1-ethoxy-4-fluoro-benzene (3.1 g) described in example 1.1 was dissolved in THF (25 ml). The solution was cooled to −75° C. and a solution of n-BuLi (9.73 ml, 1.6 M in hexane) was added slowly. The mixture was stirred for 30 min at −75° C. Trimethylborate (1.62 g) was added within 5 min. Acetic acid (1.27 g) and a 30% solution of H2O2 (1.51 g) were added sequentially. The mixture was stirred for 30 min at 0° C. and for 3 h at room temperature. Water was added and the mixture was extracted with ethyl acetate. The crude product was purified by column chromatography (n-hexane/ethyl acetate) to yield 1.77 g of 2-ethoxy-5-fluoro-phenol as a colorless oil. MS: 156 ([M]+). The mixture was stirred for 30 min at 0° C. and for 3 h at room temperature the mixture was extracted with ethyl acetate The crude product was purified by column chromatography (n-hexane/ethyl acetate)

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

Procedure: To a solution of 2-bromo-4-fluorophenol (25.8 g) in DMF (100 ml) was added K2CO3 (20.5 g) and ethyl iodide (23.2 g). The mixture was stirred for 24 h at room temperature. Water (400 ml) was added and the mixture was extracted with hexane. The organic phase was washed with water, dried, filtered over a plug of silica gel and evaporated to yield 30.1 g of 2-bromo-1-ethoxy-4-fluoro-benzene as a colorless oil. MS: 220 ([M+H]+). the mixture was extracted with hexane The organic phase was washed with water dried filtered over a plug of silica gel evaporated