The abnormal behaviour of glyoxaline-carboxylic esters and anilides towards diazonium salts / by Robert George Fargher and Frank Lee Pyman.
- Fargher, Robert George.
- Date:
- [1919?]
Licence: In copyright
Credit: The abnormal behaviour of glyoxaline-carboxylic esters and anilides towards diazonium salts / by Robert George Fargher and Frank Lee Pyman. Source: Wellcome Collection.
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![Ethyl ft-Glyoxaline~4-propionate.—This was purified by crystal¬ lisation of the hydrogen oxalate from alcohol. The ester formed an oil, which gave an immediate blood-red colour with sodium diazobenzene-p-sulphonate in aqueous sodium carbonate. The hydrogen oxalate separates from alcohol in colourless, shimmering leaflets, which are anhydrous and melt at 160° (corr.) after sintering from 155°. It is readily soluble in -water or hot alcohol, but sparingly so in cold alcohol. Found: 0 = 48*1; H = 6-0; N = 1F8. (C8H1202N2)4(C2H204)3 (942*7) requires 0 = 48-4; H = 5-8; N = ll*9 per cent. Ethyl a-hydroxy-^-glyoxaline-4-propionate crystallises from dry chloroform in minute, colourless plates which melt at 118—119° (corr.), and are anhydrous. It is readily soluble in water or alcohol, sparingly so in chloroform, and insoluble in ether. It gives a cherry-red colour with sodium diazobenzene-p-sulphonate in aqueous sodium carbonate. Found: C = 52‘3; H = 6-5. C8H1203N2 (184*1) requires 0 = 52*2; H —6-6 per cent. Wellcome Chemical Research Laboratories, London, E.C. 1. [Received, July 12th, 1919.] PRINTED IN GREAT BRITAIN BY R. CLAY AND SONS, LTD., BRUNSWICK STREET, STAMFORD STREET, S.E. 1, AND BUNGAY, SUFFOLK.](https://iiif.wellcomecollection.org/image/b30622050_0006.jp2/full/800%2C/0/default.jpg)
