74752-29-7Relevant academic research and scientific papers
Synthesis of pyrido[2,3-d]pyrimidines via palladium-catalyzed reaction of iodouracil with acetylenes
Bae, Jong Woo,Lee, Seung Hwan,Cho, Young Jin,Jung, Yeon Joo,Hwang, Han-June,Yoon, Cheol Min
, p. 5899 - 5902 (2000)
The reactions of iodouracils having a formamidine or acetamidine moiety 1 with various acetylenes 2 in DMF at 120°C using potassium carbonate and a catalytic amount of palladium acetate gave a mixture of pyrido[2,3- d]pyrimidine derivatives in good to high yields. Addition of lithium chloride to the reaction solution resulted in a change of reaction selectivity. (C) 2000 Elsevier Science Ltd.
Known and New Types of Reactions in the Photoreaction of Stilbenes with Cyclic Imines
Kaupp, Gerd,Grueter, Heinz-Willi
, p. 2844 - 2858 (2007/10/02)
The photoreactions of stilbene and 1,4-diphenyl-1,3-butadiene with caffeine and of stilbene with benzothiazole, 1-methylimidazole and 2-(methylthio)benzothiazole have been investigated with respect to know (- , -cycloaddition , inserting -addition ), mechanistically new (uncatalyzed, substitutive -addition ) and principally new reaction types (substitutive -addition with substituent migration and cleavage of a double bond , substitutive -addition with cleavage of a double bond , intermolecular exchange of vinyl substituents ).The products are isolated and characterized analytically, spectroscopically (UV, 1H, 13C NMR) and by chemical transformations .The new reaction types are without precedence.They are formulated to occur via 1,4-diradicals.
