Salts of 5-Substituted Uracils with 1,8-Diazabicyclo[5.4.0]-undec-7-ene: Convenient Reagents for Nucleophilic Addition and Substitution Reactions
作者:Jerzy Suwiński、Krzysztof Walczak
DOI:10.1055/s-2001-10805
日期:——
1,8-Diazabicyclo[5.4.0]-undec-7-ene (DBU) salts of 5-substituted uracils have been obtained as crystals. The salts were used as nucleophiles in the synthesis of 1-(2′-hydroxy-3′-methoxypropyl)uracils by oxirane ring opening in 1,2-epoxy-3-methoxypropane and in reversed pyrimidine nucleosides synthesis by substitution of the terminal tosylate group in methyl 6-O-tosyl-α-d-glucopyranoside.