Structure of 54977-92-3
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CAS No. : | 54977-92-3 |
Formula : | C14H14N2O |
M.W : | 226.27 |
SMILES Code : | O=C(NCC1=CC=CC=C1)C2=CC=C(N)C=C2 |
MDL No. : | MFCD00440145 |
InChI Key : | ZWMQLNXGNSNUEO-UHFFFAOYSA-N |
Pubchem ID : | 577832 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P280-P301+P312-P302+P352-P305+P351+P338 |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
91% | General procedure: The aromatic nitro compounds are dissolved in ethyl acetate and SnCl2 × 2H2O (1.125 g/mmol) is added. The reaction mixture is heated under reflux for at least 2 h. The reaction is monitored by thin layer chromatography. When the reaction is completed, the batch is cooled. A solution of NaHCO3 is then added until pH 7-8 is reached. The organic layer is separated and the aqueous residue is washed three times with ethyl acetate. The combined organic layers are washed with brine and dried over MgSO4. The solvent is removed in vacuo to obtain the crude product. | |
85% | With hydrogenchloride; tin; In ethanol; water;Reflux; | General procedure: Concentrated HCl (10-15 ml) was added slowly to a mixture of 4-nitrobenzenesulfonamide or 4-nitrobenzamide analog (13a-q,1.4 mmol, 1 eq) and Sn granules (2-2.5 eq) in ethanol (10 mL). The reaction mixture was refluxed for 3.5-6 h. When the TLC plates howed that there is no more starting material left, the reaction mixture was cooled down to rt. NaOH (30% or 5M, aq) was added to the mixture until it became basic. The mixture was extracted with EA or DCM and the organic layer was dried with Na2SO4. The solvent was evaporated. The product was purified with column chromatography when required. 4.6.4.23 4-Amino-N-benzylbenzamide (14f) From 13f (0.89 g, 3.5 mmol) with general procedure B. Light yellow solid (0.67 g, 85%). 1H NMR (DMSO-d6): δ 4.42 (2H, d, J = 6.0 Hz), 5.60 (2H, s), 6.54 (2H, d, J = 8.6 Hz), 7.21 (1H, m), 7.29 (4H, m), 7.61 (2H, d, J = 8.6 Hz), 8.54 (1H, t, J = 5.9 Hz). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With trifluoroacetic acid; In dichloromethane; at 20℃; for 5.0h; | General procedure: 20 ml of trifluoroacetic acid are added to a solution of 4-[N-(tert-butoxycarbonyl)amino]-N-(tert-butyl)benzylamide (0.20 g, 0.52 mol) in DCM (20 ml); the reaction mixture is maintained with constant stirring and at room temperature for 5 h. Then, the solvent is removed at reduced pressure, and the crude reaction product is dissolved in a 1M DCM/NaOH biphasic system (1:1) (20 ml); the mixture is stirred for 10 min. Then, it is extracted with DCM, and the organic extracts are dried over MgSO4. The solvent is removed at reduced pressure obtaining III as a white solid (0.13 g, 90%). 1H NMR (300 MHz, CDCl3) δ 7.62 (d, J=8.3 Hz, 2H, H-3',5'), 7.37 (d, J=8.3 Hz, 2H, H-3',5'), 7.29 (d, J=8.4 Hz, 2H, H-2',6'), 6.64 (d, J=8.4 Hz, 2H, H-2,6), 4.59 (d, J=5.4 Hz, 2H, NHCH2), 1.32 (s, 6H, CH3). 13C NMR (75 MHz, CDCl3) δ 167.0 (CO), 150.5, 149.5, 135.5, 128.7 (C-3,5), 127.7 (C-3',5'), 125.6 (C-2',6'), 124.0, 114.1 (C-2,6), 43.7 (CH2), 34.5 (C), 31.3 (3CH3). HPLC gradient of 15-95% CH3CN/H2O in 5 min, tr=4.67 min, m/z [M+H]+=283. Theoretical elemental analysis C18H22N2O: C, 76.56; H, 7.85; N, 9.92; experimental elemental analysis C, 76.71; H, 8.10; N, 9.94. |
Some further compounds of the amino-benzamide type contemplated within this invention are the following: 1. 4-amino-N-phenyl-benzamide; [4-aminobenzanilide] 2. 4-amino-N-cyclohexyl-benzamide 3. 4-amino-N-amyl-benzamide; [4-amino-N-(n-pentyl)-benzamide] 4. 4-amino-N-benzyl-benzamide 5. 4-amino-N,N-(di-n-propyl)-benzamide 6. 4-amino-N-(n-hexyl)-benzamide 7. 4-amino-N-(n-butyl)-benzamide |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
40% | With trimethylaluminum; In tetrahydrofuran; n-heptane; at 125℃; for 0.583333h;Inert atmosphere; Microwave irradiation; | Example 3 Preparing and Obtaining (R)-3-((4-benzyl-2-oxooxazolidin-3-yl)methyl)-N-(4-(benzylcarbamoyl)phenyl)benzamide (3), of Formula (VI) Al(CH3)3 in 2.0 M heptane (0.18 ml, 0.36 mmol), under N2 atmosphere, is added to a solution of (R)-3-((4-benzyl-2-oxooxazolidin-3-yl)methyl)methyl benzoate (0.06 g, 0.18 mmol) and the compound <strong>[54977-92-3]4-amino-N-benzylbenzamide</strong> (0.081 g, 0.36 mmol) in anhydrous THF (10 ml); the reaction mixture is heated at 125 C. for 35 min in a microwave reactor. The crude reaction product is cooled in an ice-H2O mixture and HCl (1N) is added dropwise until effervescence stops. Then, it is extracted with diethylether (20 ml), the organic extracts are dried over anhydrous MgSO4, and the solvent is removed at reduced pressure. The crude reaction product is purified by chromatography (6:4 Hex/AcOEt), obtaining 3 as a white solid (0.04 g, 40%). 1H NMR (300 MHz, DMSO-d6) δ 10.47 (s, 1H, NH), 8.95 (t, J=6.0 Hz, 1H, NHCH2), 8.04-7.78 (m, 6H), 7.64-7.48 (m, 4H), 7.45-7.13 (m, 8H), 4.68 (d, J=15.6 Hz, 1H), 4.47 (d, J=6.0 Hz, 2H, NHCH2), 4.41 (d, J=15.9 Hz, 1H), 4.22-4.18 (m, 1H), 4.08-3.99 (m, 1H), 4.03-3.83 (m, 1H, H-4), 3.05 (dd, J=13.7, 4.2 Hz, 1H, H-6), 2.75 (dd, J=13.5, 8.2 Hz, 1H, H-6). 13C NMR (75 MHz, DMSO-d6) δ 165.6 (2CO), 139.8 (CO), 137.3, 136.1, 135.1, 131.0, 129.2 (2C), 128.7, 128.5 (2C), 128.2 (3C), 127.9 (2C), 127.2 (3C), 126.8, 126.7 (2C), 119.5 (2C), 66.3 (C-5), 55.3 (C-4), 45.1 (C-13), 42.5 (NHCH2), 37.2 (C-6). Theoretical elemental analysis C32H29N3O4: C, 73.97; H, 5.63; N, 8.09; experimental elemental analysis C, 73.88; H, 5.66; N, 8.08. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
0.29 g | In acetone;Reflux; | General procedure: 4-Phenylbenzoyl chloride (15, 1.2 mmol, 1-1.2 eq) in acetone (10 mL) was added slowly to a mixture of potassium thiocyanate (1-1.2 eq) in acetone (10 mL). The reaction mixture was refluxed 1.5-3 h and the reaction was monitored by TLC. The reaction mixture was cooled down to rt and an appropriate benzenesulfonamide or benzamide analog (14a-q, 1 eq) in acetone (10 mL) was slowly added. The reaction mixture was refluxed for 2-4 h orovernight. When starting material was disappeared (detected by TLC plate), the mixture was poured on ice cold water which pH was adjusted to 5 with HCl. If the product crystallized, it was filtered and washed with small amount of cold water. Otherwise the mixture was extracted with EA. The product was purified by column chromatography, recrystallization or washing with hexane. 4.6.4.41 N-((4-(Benzylcarbamoyl)phenyl)carbamothioyl)-[1,1'-biphenyl]-4-carboxamide (17f) From 14f (0.40 g, 1.8 mmol) with general procedure C. White solid (0.29 g, 35%). 1H NMR (DMSO-d6): δ 4.50 (2H, d, J = 6.2 Hz), 7.25 (1H, m), 7.34 (4H, m), 7.45 (1H, t, J = 7.5 Hz), 7.53 (2H, t, J = 7.6 Hz), 7.78 (2H, d, J = 7.3 Hz), 7.86 (4H, d, J = 8.5 Hz), 7.95 (2H, d, J = 8.5 Hz), 8.10 (2H, d, J = 8.5 Hz), 9.07 (1H, t, J = 6.1 Hz), 11.68 (1H, s), 12.77 (1H, s); 13C NMR (DMSO-d6): δ 42.6, 123.6, 126.6, 126.7, 127.0, 127.2, 127.8, 128.3, 128.5, 129.1, 129.5, 130.8, 131.8, 138.7, 139.7, 140.5, 144.6, 165.5, 167.9, 179.1; ESI-MS 466.12 [M+H]+; Anal. Calcd for C28H23N3O2S: C 72.24, N 9.03, H 4.98, S 6.89; found: C 72.33, N 8.92, H 4.92, S 7.05. |