The Philippine journal of science . ger contains the color band, Oscillation 2000 22 2* 26 2S 3000 J« 36 33 4000 « *z *.o3a 2.« P? \ \ \ ?? \ \ \\ i f\ V 1 \ \ \ \ -. \\ 1 - \ ? VV v \ A;\ \\ 1 \\\ 1 /.a /.6lA \ \ 1 \ \ \ ^v /\ k \ ??•?•??N, >- • • ?^.-X * ^\ 11 \ V ^ vJ > --< i \ \ Fig. 2. Full curve. Dithiophthalimide in alcohol. Dash-dot curve. Dithiophthalimide in alcoholwith 5 equivalentes of sodium ethoxide. Dash curve. Dithiophthalimide in sulphuric curve. Dithiophthalimide in pyridine. but owes its reddish yellow color to general
The Philippine journal of science . ger contains the color band, Oscillation 2000 22 2* 26 2S 3000 J« 36 33 4000 « *z *.o3a 2.« P? \ \ \ ?? \ \ \\ i f\ V 1 \ \ \ \ -. \\ 1 - \ ? VV v \ A;\ \\ 1 \\\ 1 /.a /.6lA \ \ 1 \ \ \ ^v /\ k \ ??•?•??N, >- • • ?^.-X * ^\ 11 \ V ^ vJ > --< i \ \ Fig. 2. Full curve. Dithiophthalimide in alcohol. Dash-dot curve. Dithiophthalimide in alcoholwith 5 equivalentes of sodium ethoxide. Dash curve. Dithiophthalimide in sulphuric curve. Dithiophthalimide in pyridine. but owes its reddish yellow color to general absorption. Theultra-violet bands are still present, heading at the same pointsas with acetic acid solvent, but the persistence of the one at = 3060 is greatly reduced (fig. 3), IX, A, 2 Pratt and Brill: Phthalide Co7npoiinds PHTHALANIL OXIME 111 c=o C6H4<^^NC6H5 C=NOH Phthalanil oxime was prepared from thiophthalanil andhydroxylamine.^ Oscillation ZOOO 2? Z4 Ze Ze 3000 32 34- 36 38 4000. ?+-> QJ 0 W y 3 >.a Fig. 3. Curve 1. Thiophthalanil in glacial acetic acid. Curve 2. Thiophthalanil in sulphuric acid. Repeated recrystallization from methyl and from ethyl alcoholgave colorless needles melting with decomposition at 245*^ Reissert und Holle, loc. cit. 112 The Philippine Jommal of Science i9i4 (corrected). The compound slowly becomes tinged with pinkishyellow on the surface upon standing in a desiccator over sul-phuric acid. It agreed in all its properties with the descriptiongiven by Reissert and Holle. The alcohol solution fluoresced greenish in the light of thearc, and gave an absorption spectrum with a well-marked band heading at - = 3150 and a more refrangible band in the benzene A region at ^ = 3840. The addition of alkali turned the alcohol solution canaryyellow and shifted the absorption band to - = 2900, at the A same time greatly reducing the persistence of selective absorp-tion at Y = 3840. A Phthalanil oxime in concentrat
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1906
