94591-38-5Relevant academic research and scientific papers
Reaction of Pyrazine-2,3-dicarbonitrile and 1,3-Dimethyllumazine with Alkyl Radicals
Tada, Masaru,Ito, Takayori,Ohshima, Kaoru
, p. 1893 - 1896 (2007/10/02)
Pyrazine-2,3-dicarbonitrile (1) reacts with alkyl radicals to give mono- 3 and di-alkylated pyrazine-2,3-dicarbonitriles 4.Similarly 1,3-dimethyllumazine (2) reacts with alkyl radicals to give 7-alkyl-1,3-dimethyllumazines 8 as a major product.The reactivity of alkyl radicals decreases in the order tertiary, secondary, and primary, and 1 is more reactive than 2 in those radical substitution reactions.
Pteridines, LXXIV. - Acylations of Lumazines by Radical Nucleophilic Substitution
Baur, Ralph,Kleiner, Erna,Pfleiderer, Wolfgang
, p. 1798 - 1814 (2007/10/02)
Lumazines are prone to radical nucleophilic substitutions and form with acyl radicals at the unsubstituted pyrazine moiety in a regioselective reaction 7-acyllumazines (12 - 21).Alkyl substituents in 7-position direct the entering acyl residue into the 6-
