Spectral studies of some prepared phosphorus-nitrogen compounds

IsN NMR Spectroscopy of Phosphorus-Nitrogen Compounds

A systematic study of sensitil'ilY enhancement in ' ~N NMR spectra of phosphorus-nilrogf'o compounds by 3IP.I5N polariSlllion tfllrtsff'r \'l as .,..rformed !ISing Iris-(dimethylamioo)phosphine ( I) as a model compound. The application of sen!ral mul1ipulse lechoiques (refocussed and oon-rdocussed INEPT. DEPT) lind dccoupling sclw>mes shows lh:tl muimum enhaocement \'I'as reached \'lith fhe non...

The Thermochemistry of Some Organo- Phosphorus Compounds

After the combustions, the phosphoric acid was, in fact, in aqueous solution, so that a correction for the heat of solution was necessary. These combustions were made in a static bomb, and as a result the concentration of phosphoric acid probably varied considerably in different parts of the bomb, leading to the comparatively large error of ±O·l per cent, associated with the heats of combustion...

C. Some Phosphorus Compounds of Milk

Phosphorus-Nitrogen Compounds, Part XLV [1] Friedel-Crafts Reactions of Some Aminochlorocyclotriphosphazatrienes*

Chloroaminocyclotriphosphazatrienes, N3P3Cl6-nRn [R = NHMe (n = 2), NHEt ( n = 1, 2), NHPr« (n = 4), NHPr* ( n = 1, 4), NHBu< (n = 2, 4), NHCH2Ph ( n = 1), NEt2 (n= 1, 2, 3), N(CH2Ph)2 (n = 1)] react with benzene in the presence of anhydrous aluminium chloride to give phenylated products: phosphazenes and/or hydrocarbons. The structures of the phenylphosphazenes are assigned from their NMR spec...

Synthesis of Some Nitrogen Functional Derivatives of 5-substituted-6-azauracil as Biologically Active Compounds

3-Arylhydrazono-2,4-dioxo-4-phenylbutanoates have been prepared by the coupling of benzoylpyruvate with aryldiazonium chlorides. Reactions of the 3-arylhydrazono-2,4- dioxo-4-phenylbutanoates with 1-aminoguanidine, semicarbazide, and thiosemicarbazide gave 5-substituted 2-imino-6-azauracil (3a), 6-azauracil (3b), and 2-thio-6-azauracil (3c), respectively. The analytical data of these compounds ...