methyl 6-bromo-2,2-dimethylhexanoate

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

Procedure: Following the procedure of Example 15, 2.5 g. of methyl 6-bromo-2,2-dimethylhexanoate, 1.46 g. of potassium carbonate, a catalytic amount of potassium iodide, and 2.14 g. of 2,4-dihydroxy-3-propylacetophenone were reacted to give 2.96 g. of the title product as a brown oil. IR, NMR. to give 2.96 g

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

Procedure: Following the procedure of Example 44, 2.5 g. of methyl 6-bromo-2,2-dimethylhexanoate, 1.46 g. of potassium carbonate, a catalytic amount of potassium iodide, and 1.67 g. of 2,4-dihydroxyacetophenone were reacted in 125 ml. of acetone giving 2.3 g. of the title product as an oil. M+ =308; NMR.

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

Procedure: Following the procedure of Example 15, 2.5 g. of methyl 6-bromo-2,2-dimethylhexanoate, 1.46 g. of potassium carbonate, a catalytic amount of potassium iodide, and 2.14 g. of 2,4-dihydroxy-3-propylacetophenone were reacted to give 2.96 g. of the title product as a brown oil. IR, NMR. to give 2.96 g

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

Procedure: The procedure In Example 4 is followed but using 4,6-diphenyl-2-pyridinone (4 g), methyl 6-bromo-2,2-dimethylhexanoate (5.8 g) (prepared according to the method described in Patent EP 108 592), silver carbonate (2.3 g) and toluene (150 cc). The product is purified by chromatography under pressure on silica gel (30-60 mm; eluent: n-hexane-ethyl acetate 95-5, brown oil) prepared The product is purified by chromatography under pressure on silica gel (30-60 mm; eluent: n-hexane-ethyl acetate 95-5, brown oil)

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

Procedure: The procedure in Example 4 is followed but using 4,6-diphenyl-2-pyridinone (4 g), methyl 6-bromo-2,2-dimethylhexanoate (5.8 g) (prepared according to the method described in Patent EP 108 592), silver carbonate (2.3 g) and toluene (150 cc). The product is purified by chromatography under pressure on silica gel (30-60 mm; eluent: n-hexane-ethyl acetate 95-5, brown oil) prepared The product is purified by chromatography under pressure on silica gel (30-60 mm; eluent: n-hexane-ethyl acetate 95-5, brown oil)

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

Procedure: Following the procedure of Example 15, 2.5 g. of methyl 6-bromo-2,2-dimethylhexanoate, 1.46 g. of potassium carbonate, a catalytic amount of potassium iodide, and 2.14 g. of 2,4-dihydroxy-3-propylacetophenone were reacted to give 2.96 g. of the title product as a brown oil. IR, NMR. to give 2.96 g

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

Procedure: Following the procedure of Example 44, 2.5 g. of methyl 6-bromo-2,2-dimethylhexanoate, 1.46 g. of potassium carbonate, a catalytic amount of potassium iodide, and 1.67 g. of 2,4-dihydroxyacetophenone were reacted in 125 ml. of acetone giving 2.3 g. of the title product as an oil. M+ =308; NMR.

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

Procedure: Following the procedure of Example 15, 2.5 g. of methyl 6-bromo-2,2-dimethylhexanoate, 1.46 g. of potassium carbonate, a catalytic amount of potassium iodide, and 2.14 g. of 2,4-dihydroxy-3-propylacetophenone were reacted to give 2.96 g. of the title product as a brown oil. IR, NMR. to give 2.96 g