反应详情

5-Bromo-thiophene-3-carboxylic acid (0.44 g, 2.18 mmol) was dissolved in acetonitrile (3 mL) and decahydroquinoline (a 3:2 mixture of cis- to trans-isomers; 2 mL) then HATU (2.18 mmol) was added. The reaction mixture was stirred overnight, and then the solvent evaporated and the residue purified by flash chromatography on silica eluting with 0-50% ethyl acetate in cyclohexane. The fractions containing the desired cis-product were concentrated under vacuum to give the title compound (0.63 g) as a colourless gum. LCMS m/z 330.36 [M+H]+ R.T.=4.09 min. (Analytical Method 5).

1. customthe solvent evaporated
2. customthe residue purified by flash chromatography on silica eluting with 0-50% ethyl acetate in cyclohexane
3. additionThe fractions containing the desired cis-product
4. concentrationwere concentrated under vacuum