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CAS No. : | 6313-33-3 | MDL No. : | MFCD00012865 |
Formula : | CH5ClN2 | Boiling Point : | - |
Linear Structure Formula : | [HC(NH2)2]Cl | InChI Key : | NMVVJCLUYUWBSZ-UHFFFAOYSA-N |
M.W : | 80.52 | Pubchem ID : | 10313058 |
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-H335 | 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 |
---|---|---|
89% | With 8-quinolinol; sodium hydroxide; copper dichloride In water at 20℃; for 0.333333 h; Sealed tube; Microwave irradiation | General procedure: In a 10 mL glass tube 2-iodobenzoic acid (1.0 mmol), acetamidine hydrochloride (1.2 mmol), CuCl2 (0.1 mmol), L2 (0.1 mmol), and NaOH (4.0 equiv.) and 3.0 mL water were placed. The vessel was then sealed with a septum and placed into the microwave cavity. Initial microwave irradiation of 120 W by using a CEM Discover microwave synthesizer was used at the room temperature for 20 min. The reaction mixture was stirred continuously during the reaction. After completion of the reaction, the solvent was removed in vacuo. The residue was purified by silica gel column chromatography to afford the corresponding product. All the products were confirmed by NMR and MS spectroscopic analysis. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
55% | With 8-quinolinol; sodium hydroxide; copper dichloride In water at 20℃; for 0.333333 h; Sealed tube; Microwave irradiation | General procedure: In a 10 mL glass tube 2-iodobenzoic acid (1.0 mmol), acetamidine hydrochloride (1.2 mmol), CuCl2 (0.1 mmol), L2 (0.1 mmol), and NaOH (4.0 equiv.) and 3.0 mL water were placed. The vessel was then sealed with a septum and placed into the microwave cavity. Initial microwave irradiation of 120 W by using a CEM Discover microwave synthesizer was used at the room temperature for 20 min. The reaction mixture was stirred continuously during the reaction. After completion of the reaction, the solvent was removed in vacuo. The residue was purified by silica gel column chromatography to afford the corresponding product. All the products were confirmed by NMR and MS spectroscopic analysis. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
44% | at 200℃; for 0.5 h; | Example 8Synthesis of 7-aminoquinazolin-4-one 4-Nitroanthranilic acid (10.0 g, 54.9 mmol) and formamidine hydrochloride (6.63 g, 82.4 mmol) were ground together in a mortar and pestle to produce a fine, intimate mixture. The mixture was placed in a 250 mL round-bottom flask, and spread evenly over the surface. The flask was placed in an oilbath at 200° C. The solid underwent a color change, and a distillate was seen on the side of flask, but did not really melt. After 30 min the flask was removed from the heating bath. 0.3M sodium hydroxide solution (150 mL) was added to the cooled flask, the black solid mass was broken up with a spatula, and stirred for 1 h. The solid was filtered off and washed with water. The filtrate was discarded. The black solid was suspended in dichloromethane/methanol (10:1) and filtered through a plug of silica, eluting with the same solvent until no more product came off. The material was one spot by TLC, plus black baseline material, but was poorly soluble, so a large volume of solvent was needed.The filtrate was evaporated to dryness and the solid residue triturated with a little methanol and filtered to give 7-nitroquinazoline-4-one (4.65 g, 44percent). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
55.8% | With sodium methylate In methanol at 20℃; for 24 h; | Following the preparation protocol of Section 2.8, the reaction mixture offormimidamide hydrochloride 4b (739 mg, 7.1 mmol), sodium methoxide (1M inmethanol, 7.1 mL, 7.1 mmol) and compound 5 (1.34 g, 7.1 mmol) in methanol (50mL) was stirred at room temperature for 1 d to give compound 6b as a light yellowsolid (558 mg, 55.8percent); mp 154-156 °C; 1H NMR (400 MHz, DMSO-d6) δ (ppm) 8.89(s, 1H), 8.53 (s, 1H). |
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