反应详情

Combine 5-azido-3-(tert-butyl-phenyl)-4-cyano-thiophene-2-carboxylic acid methyl ester (0.309 mmol) and THF at room temperature and add a fresh THF solution of 0.1M SmI (0.93 mmol). Stir the reaction for 15 minutes and quench with 2M sodium carbonate solution until pH was greater than 9.0. Dilute the reaction with ethyl acetate and wash successively with 2M sodium carbonate, water, and brine. Separate the organics, dry over sodium sulfate, filter, and concentrate to give the title compound as a dark solid: 1H NMR (400 MHz, CDCl3) δ 7.46-7.36 (m, 4H), 5.23 (s, 2H), 3.71 (s, 3H), 1.36 (s, 9H), MS found (M+1) 315.1.

1. customthe reaction for 15 minutes
2. customquench with 2M sodium carbonate solution until pH was greater than 9.0
3. additionDilute
4. customthe reaction with ethyl acetate
5. washwash successively with 2M sodium carbonate, water, and brine
6. customSeparate the organics,
7. dry with materialdry over sodium sulfate
8. filtrationfilter
9. concentrationconcentrate