反应 #79612

反应方程式

methyl 2-bromo-3-aminobenzoate

5-(4-trifluoromethylphenyl)-1,3-cyclohexanedione

→

3-(3-carbomethoxy-2-bromoanilino)-5-(4-trifluoromethylphenyl)-cyclohex-2-en-1-one

收率 74.0%

反应条件

后处理

1. 1
   其他The resultant solid was triturated with 4:1 EtOAc/Et2O

实验过程

A mixture of methyl 2-bromo-3-aminobenzoate (10.2 g, 44.3 mM) and 5-(4-trifluoromethylphenyl)-1,3-cyclohexanedione (1.77 g, 6.93 mM) was heated at 150° C. under a stream of nitrogen for 20 minutes. The resultant solid was triturated with 4:1 EtOAc/Et2O to afford 2.18 g (74%) of 3-(3-carbomethoxy-2-bromoanilino)-5-(4-trifluoromethylphenyl)-cyclohex-2-en-1-one. 1H NMR (DMSO-d6) δ8.9 (s, 1H), 7.75-7.5 (m, 7H), 3.9 (s, 3H), 3.5 (m, 1H), 2.9 (dd, J=14 and 9 Hz, 1H), 2.7 (dd, J14 and 4 Hz, 1H), 2.55 (dd, J=14 and 9 Hz, 1H), 2.35 (dd, J=14 and 4 Hz, 1H). MS (ES) m/e 368, 370.

来源