Tributylphosphine → (Z)-{4-[3-(4-iodo-phenyl)-3-phenyl-allyloxy]-2-methyl-phenoxy}-acetic acid methyl ester

Participants

Reaction Conditions

Reaction Steps

To a solution of (Z)-3-(4-Iodo-phenyl)-3-phenyl-prop-2-en-1-ol (756 mg, 2.249 mmol) in dry tetrahydrofuran (40 mL) was added tributylphosphine (0.61 ml, 3.37 mmol). The mixture was cooled to 0° C. and added 1,1′-(azodicarbonyl)dipiperidine (850 mg, 3.37 mmol) and after 10 min (4-Hydroxy-2-methyl-phenoxy)-acetic acid methyl ester (485 mg, 2.47 mmol) was added. After 1.5 hr at 0° C. the reaction was allowed to warm up to ambient temperature and stirred overnight. The reaction mixture was added silica gel Fluka 60 (10 g) and evaporated in vacuo. The residue was purified by ISCO combiflash 16 (silica gel, DCM/MeOH 90:10) giving (Z)-{4-[3-(4-iodo-phenyl)-3-phenyl-allyloxy]-2-methyl-phenoxy}-acetic acid methyl ester as an oil.

Provenance & Evidence