I,2-Naphthalic anhydride

Dehydrooenation 1,4-Benzoquinone. Chloranil. o-Chloranil. Copper chromite. Copper-Chromium oxide. Diethyl azodicarboxylate. 2,3-Dichloro-3,6-dicyano-I,4-benzoquinone. DIphenylpIcrylhydrazyl, N-Lithioethylenediamlne. Mercuric acetate. Nickel catalyst. Oleic add, Palladium. Perbenmic acid. Potassium l-butoxide. Pyrldinium hydrobromide per-bramlda, Balinlum. Selenium dioxide. Sodium borohydride. Sulfdr (sm 1,2-Naphthalic anhydridli preparation). Tetracyanoethylene. Thionyl chloride. Trityl perchlorate. 

Fig. 13.144 (1) sulfonation, (2) chromate oxidation to give the naphthalic anhydride (64), (3) condensation with A-methylamine, and (4) replacement of the sulfonic acid group in a reaction with methoxide. This process gives C.I. Fluorescent Brightener 162. 

The successful application of simple bis(naphthalic anhydrides) containing oxy-, keto- and sulfo-groups, i.e. oxy-bis(4,5-dicarboxynaphthyl-l), keto-bis(4,5-dicarboxynaphthyl-1) and sulfone-bis(4,5-dicarboxynaphthyl-l), was reported in Refs. [177-180] 3,3, 4,4 -tetraaminodiphenyl oxide and 2,2-bis(3,4-diamino-phenyl) hexafluoropropane were used as monomers ... 

Figure 6. Effect of inducers on detoxification of herbicides in wheat (M), herbicide susceptible L rigidum ( ) and herbicide-resistant L rigidum (M), Bars are the mean amount ( SE) of herbicide remaining 24 h after treatment The CYP inducers naphthalic anhydride (NA, I mM), 2,4-D (500 juM), phenobarbital (PB, 1 mM) and ethanol (EtOH, 3%) were applied in hydroponic culture 24 h prior to the addition of herbicides (Preston, C. unpublished data).

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