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Methylation of benzalazine

Residues containing 25 g. of hydrazine sulfate are dissolved in 5 1. of water, and the solution made distinctly alkaline to methyl orange with sodium hydroxide. Forty-one grams of benzaldehyde is added, and the solution shaken thoroughly. The milky suspension that forms is allowed to stand (overnight) until the yellow precipitate has settled out and the supernatant liquid has become clear. The precipitate is filtered, washed thoroughly with water, and dried at room temperature. Yield 39 g. (98 per cent) of benzalazine melting point 93°C. after recrystallization from alcohol. [Pg.93]

A preliminary account on the mesophases of some polyalkanoates of p,p -di-hydroxy-a,a -di-methyl benzalazine, J.Polym.Sci., Polym.Lett.Ed. 13 455 (1975). [Pg.282]

See other pages where Methylation of benzalazine is mentioned: [Pg.98]    [Pg.50]    [Pg.51]    [Pg.98]    [Pg.50]    [Pg.51]    [Pg.324]    [Pg.126]   
See also in sourсe #XX -- [ Pg.16 , Pg.51 ]

See also in sourсe #XX -- [ Pg.16 , Pg.51 ]

See also in sourсe #XX -- [ Pg.16 , Pg.51 ]

See also in sourсe #XX -- [ Pg.16 , Pg.51 ]

See also in sourсe #XX -- [ Pg.16 , Pg.51 ]



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Benzalazine

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