反应详情

To a chloroform (0.1 M) solution of methyl 3-bromo-5-(3-methoxypropyl)-4-methylbenzoate (1 eq., Amine 88, Step 2) was added iodotrimethylsilane (3 eq.). The resulting red solution was stirred at RT in darkness for 18 h. The reaction was quenched with methanol before the volatiles were removed in vacuo. The resulting residue was then taken up in ether, washed sequentially with 10% aq. HCl, 1 N aq. NaOH, water and brine, dried over Na2SO4, filtered and the filtrate concentrated in vacuo. Purification of the crude product by way of flash chromatography (SiO2, Hex→3:7 (v/v) Hex:EtOAc) afforded the title compound as a pale yellow oil.

1. customThe reaction was quenched with methanol before the volatiles
2. customwere removed in vacuo
3. washwashed sequentially with 10% aq. HCl, 1 N aq. NaOH, water and brine
4. dry with materialdried over Na2SO4
5. filtrationfiltered
6. concentrationthe filtrate concentrated in vacuo
7. customPurification of the crude product by way of flash chromatography (SiO2, Hex→3:7 (v/v) Hex:EtOAc)