反应详情

温度

120 °C

A mixture of ethyl 4,6-dichloronicotinate (500 mg, 2.272 mmol) and (4-aminophenyl)(morpholino)methanone (469 mg, 2.272 mmol) in N,N-Dimethylacetamide (5 mL) was treated with DIEA (0.794 mL, 4.54 mmol) and sealed in a large microwave vial and heated in a heating block at 120° C. overnight. The reaction mixture is removed from heating block, cooled to rt and diluted with water and extracted into CH2Cl2. Washed with water and concentrated to give dark oil which was chromatographed (ISCO Companion 40 g silica gel column and eluted with EtOAc/Hexane gradient (0-100%) to give 300 mg of ethyl 6-chloro-4-(4-(morpholine-4-carbonyl)phenylamino)nicotinate as a light yellow solid. LCMS: (M+H)+=390.02, 392.02 (Cl pattern). 1H NMR (400 MHz, CDCl3) δ ppm 1.43 (t, J=7.14 Hz, 3H) 3.74 (br. s, 8H) 4.41 (q, J=7.03 Hz, 2H) 7.00 (s, 1H) 7.30 (d, J=8.35 Hz, 2H) 7.51 (d, J=8.35 Hz, 2H) 8.80 (s, 1H) 9.99 (s, 1H).

1. customsealed in a large microwave vial
2. customThe reaction mixture is removed
3. temperaturefrom heating block
4. temperaturecooled to rt
5. additiondiluted with water
6. extractionextracted into CH2Cl2
7. washWashed with water
8. concentrationconcentrated
9. customto give dark oil which
10. customwas chromatographed (ISCO Companion 40 g silica gel column
11. washeluted with EtOAc/Hexane gradient (0-100%)