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4-Amino-2,3-dimethyl-8-hydroxy- -Hydrochlorid

Hydriert man 6-Acetylamino-4-hydroxy-7-(N-methyl-N-nitro-amino)-8-nitro-chinazolin, so wird die aromatische Nitro-Gruppe reduziert und die N-Nitro-Bindung gespalten. Bei der Zu-gabe von konzentrierter Salzsaure tritt Cyclisierung zu 9-Amino-1,2-dimethyl-5-hydroxy-lH-<,imidazo[4,5-g]chinazolin)-Hydrochlorid (80% Schmp. 326-327°) ein131 ... [Pg.228]

Analog wird 4-Formyl-7-methoxy-benzofurazanoxid mit Hydroxylamin-Hydrochlorid, O-Me-thyl-hydroxylamin-Hydrochlorid bzw. 1.1-Dimethyl- oder Phenyl-hydrazin zu Oximen bzw. Hydrazonenumgcsetzt, dieisoliert werden undbeimErhitzen2-Amino - bzw. 2-Hydroxy-2H-indazole liefern z.B. ... [Pg.805]

A soln. of 6-keto-5-ethyl-5-dimethyl-amino -4 - methyl - 4 - hydroxy - 5,6 - dihydro - 4H- pyrido [3,2,1 - jk] carbazole (obtained from the hydrochloride with aq. NaOH) in ethanol treated with aq. 6.5 N NaOH, and refluxed 4 hrs. 1-acetylcarbazole. [Pg.333]

See other pages where 4-Amino-2,3-dimethyl-8-hydroxy- -Hydrochlorid is mentioned: [Pg.1186]    [Pg.1186]    [Pg.3]    [Pg.304]    [Pg.228]    [Pg.623]    [Pg.1131]    [Pg.43]    [Pg.195]    [Pg.200]    [Pg.201]    [Pg.210]    [Pg.145]    [Pg.254]    [Pg.111]    [Pg.126]    [Pg.125]   
See also in sourсe #XX -- [ Pg.228 , Pg.229 ]



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2- Amino Hydrochlorid

2- Amino-4,5-dimethyl

4.5- Dimethyl-2- 1-hydroxy

5- Amino-4,5-dimethyl-4-hydroxy

Amino hydroxy

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