反应详情

温度

120 °C

A mixture of 0.67 g (4 mmol) trans-3-(4-Methylamino-cyclohexyl)-prop-2-yn-1-ol, 1.24 ml (12 mmol) of 5-bromo-2-fluoropyridine and 1.76 ml (13.6 mmol) N-ethyldiisopropylamine was heated for 3 h at 80° C. and 24 h at 120° C. The mixture was diluted with 1 ml DMF, treated with a catalytic amount of NaI and heated for 2 days at 120° C. The reaction was cooled, evaporated and partitioned between aqueous saturated NaHCO3/Et2O (3×). The organic phases were washed with aqueous 10% NaCl, dried (NaSO4) and evaporated. Flash chromatography on silica gel (MeCl2/Et2O 97.5:2.5 to 92.5:7.5) gave 0.57 g (44%) of trans-3-{4-[(5-Bromo-pyridin-2-yl)-methyl-amino]-cyclohexyl}-prop-2-yn-1-ol, MS: 323 (MH+, 1Br).

1. temperatureheated for 2 days at 120° C
2. temperatureThe reaction was cooled
3. customevaporated
4. custompartitioned between aqueous saturated NaHCO3/Et2O (3×)
5. washThe organic phases were washed with aqueous 10% NaCl
6. dry with materialdried (NaSO4)
7. customevaporated