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CAS No. : | 4760-34-3 | MDL No. : | MFCD00192314 |
Formula : | C7H10N2 | Boiling Point : | - |
Linear Structure Formula : | CH3NHC6H4NH2 | InChI Key : | RPKCLSMBVQLWIN-UHFFFAOYSA-N |
M.W : | 122.17 | Pubchem ID : | 78498 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302+H312+H332-H315-H319 | Packing Group: | N/A |
GHS Pictogram: |
* 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 |
---|---|---|
97% | With sodium metabisulfite; In N,N-dimethyl-formamide;Reflux; | 8.4 g of compound c1, 7 g of benzaldehyde, 13gSodium metabisulfite,200mL dimethylformamide was added to the reaction flask Medium, reflux overnight. After the reaction is finished, cool to room temperature.Pour the reaction solution into 500 mL of ice water with stirring.Solid precipitated, suction filtered, and washed with ethanol, petroleum ether,Drying gave a solid, Compound d1 (11.3 g, yield 97percent). |
94% | With Ag2CO3/celite; In ethanol; at 70℃; for 3h; | General procedure: To a mixture of 1,2-phenylenediamines (1.0 mmol) andaldehydes (1.1 mmol) in ethanol, 25 mol percent of Ag2CO3/Celite (3 mL) was added. The resulting mixture was stirredat 70 °C for 3 h. After this time, the reaction mixture wasdiluted with ethanol (50 mL) and the catalyst was separatedby filtration. Water was then added to the organic layer, andthe products were filtered and washed with water. All of theproducts are known compounds and characterized easily bycomparison with melting point, IR, [1?6] H NMR spectraldata reported in literature. |
90% | In water; N,N-dimethyl-formamide; at 80℃; | General procedure: An ortho-phenylenediamine derivative 3 (1.0 mmol; 1.0 equiv) and an aldehyde 4 (1.0 mmol; 1.0 equiv) were dissolved in wet DMF (DMF 9.0 mL, H2O 1.0 mL). The resulting reaction mixture was stirred at 80°C in an open flask, and the reaction progress was monitored by TLC. On the complete consumption of 3, the reaction mixture was cooled to room temperature and concentrated under reduced pressure. The crude product obtained was purified by column chromatography on silica gel to afford the corresponding benzimidazole 5. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
83% | With acide 2,4,6-trihydroxybenzoique; oxygen; In toluene; at 70℃; under 750.075 Torr; for 24h;Green chemistry; | General procedure: To a two-necked flask, benzylamine derivatives 1 (4.5 mmol), o-phenylenediamine derivatives 2 (3.0 mmol), 4,6-dihydroxysalicylic acid (10 mol%), and distilled toluene (1.0 mL) were added, and then the reaction vessel was connected to an O2 balloon at room temperature. The mixture was stirred at 70 C under an O2 atmosphere for 24 h. The resulting mixture was transferred into a round-bottom flask using methanol (MeOH) and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (basified with Et3N (25 wt%) (eluent: hexane/EtOAc with 1.0 v/v% Et3N) to give the product 3. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99% | In 1-methyl-pyrrolidin-2-one; water; at 445℃; under 187519.0 Torr; for 0.00277778h;Supercritical conditions; | Under the same conditions as in Example 1-5 except that N-methyl-1,2-phenylenediamine (manufactured by Sigma-Aldrich) and benzoic acid hydride (manufactured by Tokyo Chemical Industry Co., Ltd.) were used at a pressure of 25 MPa, (13) was carried out in supercritical water. As a result, the reaction time was 10 seconds, and the yield was 99percent |
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