反应详情

To a suspension of 4-chloro-3-(2-dimethylaminoethoxy)aniline (1.22 g, 0.006 mol) in MeOH (30 ml) containing dimethoxyethanal in MTBE (1.76 g, 0.17 mol) and glacial acetic acid (1.71 g) was added sodium cyanoborohydride (1.78 g, 0.03 mol ) portionwise at 0° C. The reaction was left to stir at room temperature for 1 hour, and then 10% aq. NaOH was added and the mixture was extracted with CH2Cl2. The combined organic layers were dried (Na2SO4), and concentrated in vacuo to give a brown oil. Purification by FCC, eluting with CH2Cl2 gave the title compound (1.49 g, 87%)

1. waitThe reaction was left
2. extractionthe mixture was extracted with CH2Cl2
3. dry with materialThe combined organic layers were dried (Na2SO4)
4. concentrationconcentrated in vacuo
5. customto give a brown oil
6. customPurification by FCC
7. washeluting with CH2Cl2