反应详情

A suspension of 3 g (15.1 mmol) of 2-acetyl-6-bromopyridine, 0.89 g (15.9 mmol) of propargyl alcohol, 0.078 g of CuI, 300 mg of PdCl2 (P (Ph)3)2 in 60 ml of triethylamine was stirred under nitrogen at room temperature for 6 h. The mixture was diluted with water, extracted with ether, and the organic layer was washed with water (2×), brine, and dried over magnesium sulfate. The organic solution was concentrated in vacuo and the residue was purified by MPLC (silica gel 60, hexane/ethyl acetate, 1:1) to afford 1.3 g (50%) of 2-acetyl-6-(3-hydroxy-2-propynyl)pyridine, as a solid product.

1. extractionextracted with ether
2. washthe organic layer was washed with water (2×), brine
3. dry with materialdried over magnesium sulfate
4. concentrationThe organic solution was concentrated in vacuo
5. customthe residue was purified by MPLC (silica gel 60, hexane/ethyl acetate, 1:1)