Nasielski, J.’s team published research in Tetrahedron in 1972 | CAS: 14001-60-6

2-Methoxy-4-methylpyrimidine(cas: 14001-60-6) is a member of ether. When aromatic ethers are exposed to halogen in the presence or absence of a catalyst, they undergo halogenation, such as bromination.Electric Literature of C6H8N2O

The author of 《Photochemistry of aromatic compounds. VII. Influence of aliphatic amines on the photochemistry of 5-bromopyrimidines in methanol》 were Nasielski, J.; Kirsch-Demesmaeker, A.; Nasielski-Hinkens, R.. And the article was published in Tetrahedron in 1972. Electric Literature of C6H8N2O The author mentioned the following in the article:

Uv irradiation of 2-methoxy-, 2-phenyl- and 2-dimethylamino-5-bromopyrimidine in MeOH yields the corresponding dehalogenated, methylated and hydroxymethylated compounds Added Et2NH or Et3N strongly increases the rate of dehalogenation. Amines influence the photochemistry of these compounds by transfering an electron to the excited state of the bromopyrimidines. In addition to this study using 2-Methoxy-4-methylpyrimidine, there are many other studies that have used 2-Methoxy-4-methylpyrimidine(cas: 14001-60-6Electric Literature of C6H8N2O) was used in this study.

2-Methoxy-4-methylpyrimidine(cas: 14001-60-6) is a member of ether. When aromatic ethers are exposed to halogen in the presence or absence of a catalyst, they undergo halogenation, such as bromination.Electric Literature of C6H8N2O

Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia