반응 #87768

반응 방정식

trimethyl aluminum

methyl 4-(1-(2,6-dichlorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)-2-methoxybenzoate

3-(trifluoromethyl)aniline

→

desired product

수율 56.2%

4-(1-(2,6-Dichlorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)-2-methoxy-N-(3-(trifluoromethyl)phenyl)benzamide

수율 56.2%

용매

toluene

반응 조건

후처리

1. 1
   온도The reaction mixture was refluxed for 1 hr under inert atmosphere
2. 2
   기타was brought to RT
3. 3
   기타quenched with water
4. 4
   workup.ADDITIONFew drops of dilute HCl were added
5. 5
   추출the reaction mixture was extracted with DCM
6. 6
   농축concentrated
7. 7
   기타The obtained product was purified with column chromatography

실험 절차

To a solution of methyl 4-(1-(2,6-dichlorophenyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)-2-methoxybenzoate (Intermediate-46, 0.070 g, 0.17 mmol) in dry toluene was added 3-(trifluoromethyl)aniline (0.043 g, 0.17 mmol) followed by addition of trimethyl aluminum (2M solution in toluene) (0.5 mL). The reaction mixture was refluxed for 1 hr under inert atmosphere. The reaction mixture was brought to RT and quenched with water. Few drops of dilute HCl were added and the reaction mixture was extracted with DCM and concentrated. The obtained product was purified with column chromatography to afford 0.050 g of desired product. 1H NMR (300 MHz, DMSO d6): δ 3.95 (s, 3H), 7.46 (d, J=6.9 Hz, 1H), 7.54-7.65 (m, 4H), 7.72-7.76 (m, 3H), 7.94 (d, J=8.4 Hz, 1H), 8.24 (s, 1H), 10.51 (s, 1H), 12.85 (s, 1H); MS (m/z): 523.04 (M+).

출처