IX, A, 2 



Pratt and Brill: Phthalide Compounds 



113 



band heading at - = 3150 was slightly less. This solution in 



A 



hundredth molar concentration fluoresced greenish in the light 

 of the arc (fig. 4). 



Oscillation frequency. 

 22 24 26 23 3000 32 34 36 38 4000 42 



3.8 



3.6 



c 



I 3.4 

 1 ^.2 



<=> 



r. 3.6 



tH 



«M 

 O 



c 



CI 



I 2.e 



S 2.4 



r 

 1j 

 5 2.2 



> 



'■-J 



n 

 o 



CO 



s /.a 



/.4 



I.Z 



Fig. 4. Curve 1. Phthalanil oxime in alcohol. Curve 2. Phthalanil oxime in alcohol with 5 

 equivalents of sodium ethoxide. Curve S. Phthalanil oxime in sulphuric acid. Curve i- 

 Phthalanil oxime acetate in alcohol. 



THIOPHTHALOXIME 



2. 

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CeH 



c=s 



6xa4\ yv 



C=NOH 



