2-Amino-5-Methyl-Benzonitrile
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2-Amino-5-Methyl-Benzonitrile
structure -
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CAS No:
5925-93-9
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Formula:
H2NC6H3(CH3)CN
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Chemical Name:
2-Amino-5-Methyl-Benzonitrile
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Synonyms:
4-Amino-3-cyanotoluene;2-Amino-5-methylbenzonitrile;2-azanyl-5-methyl-benzenecarbonitrile;2-Amino-5-methylbenzonitrile 97%;Benzonitrile, 2-amino-5-methyl-
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CAS No:
2-Amino-5-Methyl-Benzonitrile Basic Attributes
132.16
132.068741
1806241-263-5
51672
DTXSID70287588
2926909090
Safety Information
6.1
UN 3335
3
36/37/38
26
Xi
P261-P305 + P351 + P338
H315-H319-H335
|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 39 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2-Amino-5-Methyl-Benzonitrile Use and Manufacturing
5-Methyl-2-nitrobenzonitrile (1.92 g, 11.84 mmol) was added in portions to a stirred solution of SnCl[0055] To a solution of 5-methyl-2-nitrobenzonitrile from Example 2, (25.7 g, 0.158 mol) in 643 mL of acetonitrile was added sodium dithionate (128.5 g, 0.739 mol), followed by addition of 600 mL of deionized water at 0° C. The reaction mixture was stirred for 30 minutes at 25° C. The aqueous layer was extracted with ethyl acetate three times, and the combined organic layers were dried over sodium sulfate and evaporated under vacuum to afford a crude yellow solid, which was dried under high vacuum for 24 hours to give 16.4 g of substantially pure title compound (78.4percent). 1H NMR (CDCl3): δ 2.23 ppm (s, 3H, CH3), 6.65 (d, J=8.4 Hz, aromatic), 7.18 (s, aromatic), 7.14 (d, J=8.4 Hz, aromatic).Combine 2-bromo-4-methyl-phenylamine (8.00 g, 43.0 mmol), CuCN (4.62 g, 51.6 mmol), and NMP [(30.] 0 ml) and stir at reflux. After 75 minutes, cool to ambient temperature, pour the mixture onto ice chips and stir for 1 hour. Remove the resulting precipitate by vacuum filtration. Dissolve the precipitate in NH40H and extract with dichloromethane. Combine, wash (brine), dry (sodium sulfate), and reduce the extracts to residue. Purify the residue on silica gel using [DICHLOROMETHANE/HEXANES] (75: 25) to give 3.39 g (60percent) of an orange solid: mass spectrum (ion spray): m/z = 133.1 (M+1).