Heterocycles p. 51 - 56 (2005)
Update date:2022-08-11
Topics:
Sampath, Vasu
Jadhav, Vidyadher
Lee, Hee Yoon
Kim, Yong Hae
Direct halogenation of a wide range of acetylated pyrimidine and purine nucleosides was achieved with high regioselectivity in good yields using tetrabutylammonium peroxydisulfate 1. Treatment of protected nucleosides with HCl/DMF or inorganic salts such as LiCl or NaCl in MeCN/AcOH in the presence of 1 gave the corresponding chlorinated nucleosides and bromination was achieved with N-bromosuccinimide in MeCN in the presence of 1.
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