Ethyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-bromophenyl)acetate → Ethyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-(thiophen-2-yl)phenyl)acetate

Participants

Reaction Steps

Ethyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-bromophenyl)acetate (Example 46 step C; 24 mg, 0.046 mmol) was diluted with THF (1 mL) followed by the addition of bis(tri-t-butylphosphine)palladium (0) (2.4 mg, 0.0046 mmol) and 2-thienylzinc bromide (0.23 ml, 0.12 mmol). After stirring for 2 hours, the reaction was purified by silica gel chromatography, eluting with hexanes:ethyl acetate (3:1) to yield ethyl 2-(4-(4-((4-chlorophenethyl) carbamoyl)phenoxy)-3-(thiophen-2-yl)phenyl)acetate (20 mg, 83% yield) as a clear oil.

Provenance & Evidence