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Isotonitazene CAS 14188 81 9

Product Description

Add 2.7g (0.12mol) of metal sodium and 100ml of liquid ammonia into the drying reaction bottle, cool to - 33 ℃, add 5ml of acetonitrile (0.094mol) and 10ml of ether, add it for 5 ~ 10min, cool it in dry ice acetone bath, stir and add 25ml of 11.7g (0.085mol) of 2-chlorophenylcyanide tetrahydrofuran solution. After ammonia volatilizes, add water to the residue under the protection of nitrogen, Extract with chloroform for several times, recover the solvent and cool to obtain (2) 8.6g (57%), mp108 ~ 111 ℃.cas14188-81-9 Isotonitazene cas14188-81-9 

In the reaction flask, add (2) 5.2g (0.029mol), 50ml of chloroform and 30ml of 3mol / L hydrochloric acid, stir at 25 ℃ for 24h, stand for 15h, separate the organic layer, dry with anhydrous sodium sulfate, filter through acid magnesium silicate, recover most of the solvent, cool, precipitate white crystals, filter and dry to obtain (3) 4.0g (77%), MP50 ~ 54 ℃.

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