Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. 4595-59-9, formula is C4H3BrN2, Name is 5-Bromopyrimidine. In nucleic acids, three types of nucleobases are pyrimidine derivatives: cytosine (C), thymine (T), and uracil (U). Product Details of C4H3BrN2.
Firouzeh, Ebrahim;Kazemi, Foad;Gholinejad, Mohammad;Kaboudin, Babak research published 《 Visible photosensitized sonogashira-hagihara coupling through in situ prepared palladium catalyst in N,N-dimethylformamide under copper and amine-free additives》, the research content is summarized as follows. In this study, copper and amine-free photosensitized Sonogashira-Hagihara coupling reaction using Pd(OAc)2 and p-nitrobenzophenone in N,N-dimethylformamide(DMF) under blue LED irradiation was reported. Effect of benzophenone, p-methoxybenzophenone and p-nitrobenzophenone as photosensitizers in Sonogashira-Hagihara reaction were studied in which higher yields were achieved using p-nitrobenzophenone. In situ preparation of palladium nanoparticles and the effect of p-nitrobenzophenone were confirmed using UV-Vis and dynamic light scattering (DLS). It was proposed that the DMF affected the formation and stabilization of palladium nanoparticles. Using this catalytic system, aryl iodides and bromides were reacted efficiently with alkynes between 25 and 60°C.
Product Details of C4H3BrN2, 5-Bromopyrimidine is a reactive intermediate that is used in the synthesis of 4-methoxyphenylboronic acid. 5-Bromopyrimidine has been shown to be nucleophilic, reacting with β-amino acids under basic conditions to form the corresponding 2-bromo amide. It also undergoes cross-coupling reactions with halides and can be used as a building block for other organic compounds. 5-Bromopyrimidine has optical properties that are characteristic of aromatic molecules, including strong absorption bands in the ultraviolet region and visible light region.
5-Bromopyrimidine undergoes direct metallation with lithuium diisopropylamide to yield 4-lithio-5-bromopyrimidine., 4595-59-9.
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia