cas 7464-70-2, 7-amino-1,3-dimethyl-2,4(1H,3H)-pteridinedione | Articles data ｜lookchem

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7464-70-2

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CHICHIBABIN AMINATION OF 1,3-DIMETHYLLUMAZINE
-
Gulevskaya, A. V.,Pozharskii, A. F.,Lomachenkova, L. V.
p. 1316 - 1317
(1990)
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Pteridines, LXXII. - Synthesis and Properties of 6- and 7-Amino-1,3-dimethyllumazines
The synthesis of 6- and 7-amino-, -methylamino-, and -dimethylamino-1,3-dimethyllumazines (2-4 and 12-14) is described.The nucleophilic displacement reaction proceeds easily with the 7-halo-1,3-dimethyllumazines 10, 11 whereas the amidation of 6-hydroxy-1,3-dimethyllumazine (1) with phenyl diamidophosphates is recommended for the formation of 6-amino derivatives. 6-Amino-1,3-dimethyllumazine (2) is synthesized best from 6-chloro-1,3-dimethyllumazine (7) via the 6-hydrazino derivative 5 and subsequent reduction.From pKa value determinations and UV absorption spectra of the cationic and neutral forms can be seen that protonation takes place in both series at N-5.The physical properties of the newly synthesized compounds are discussed.
Steppan, Heinz,Hammer, Joachim,Baur, Ralph,Gottlieb, Raphael,Pfleiderer, Wolfgang
p. 2135 - 2145
(2007/10/02)

pH-KONTROLLIERTE PHOTOCHEMIE VON MERCAPTOLUMAZINEN
6-Mercapto- (1) and 7-mercapto-1,3-dimethyllumazine (2) undergo photooxidations to different reaction products depending on the present molecular form in the excited state leading to disulfides, sulfinic and sulfonic acids.
Heckel, Armin,Pfleiderer, Wolfgang
p. 2161 - 2164
(2007/10/02)

The photolysis and pyrolysis of 8 azidocaffeine
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Sutherland,Pickard
p. 457 - 458
(2007/10/04)

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84689-56-5
7-Amino-1,3,5-trimethyl-5-lumazinium-tosylat

Chemical Properties

Boiling Point: 474.4 °C at 760 mmHg
Flash Point:240.7 °C
Density: 1.478 g/cm³
Vapor Pressure: 3.62E-09mmHg at 25°C
Refractive Index: 1.649
PSA: 95.80000
LogP: -0.80940

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