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2-ethoxy-N-(4-nitro-3-trifluoromethyl-phenyl)-benzamide[ No CAS ]
Yield
Reaction Conditions
Operation in experiment
With triethylamine; In dichloromethane;
2-ethoxy--benzoyl chloride was condensed with 5-Amino-2-nitrobenzotrifluoride in dichloromethane in presence of triethylamine as acid scavenger to yield 2-Ethoxy-N-(4-nitro-3-trifluromethyl-phenyl)-benzamide. The reaction mixture was then concentrated in vacuo and the residue was extracted into ethyl acetate. The ethyl acetate layer was washed with water and with cold aqueous hydrochloric acid, then dried over sodium sulphate and finally concentrated in vacuo. The residue obtained was chromatographed over silica gel to afford the desired product. 1H-NMR:delta6.95-8.10 (7H,aromatic), delta3.98(2H,t,OCH2), delta1.33(3H,t,Methyl)
4-(4-nitro-3-trifluoromethylphenyl)-1,2,4-triazole[ No CAS ]
Yield
Reaction Conditions
Operation in experiment
PREPARATION 46 4-(4-Nitro-3-trifluoromethylphenyl)-1,2,4-triazole The following compound m.p. 100°, was prepared similarly to the previous Preparation using 4-nitro-3-trifluoromethylaniline and 1,2-<strong>[628-36-4]diformylhydrazine</strong> as the starting materials: STR126 Analysis percent: Found: C, 41.9; H, 2.0; N, 21.7; Calculated for C9 H5 N4 F3 O2: C, 41.6; H, 2.1; N, 22.2.
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