Arylation of Halogenated Pyrimidines via a Suzuki Coupling Reaction
摘要:
The Suzuki coupling reaction has been used extensively for the synthesis of a wide variety of unsymmetrical biaryl compounds. We have extended this reaction to demonstrate the utility of preparing monophenyl-, diphenyl-, or triphenylpyrimidine depending on the reaction conditions. Further, it has been shown that chloropyrimidine substrates are preferable over iodo-, bromo-, or fluoropyrimidines.
Arylation of Halogenated Pyrimidines via a Suzuki Coupling Reaction
作者:Jennifer M. Schomaker、Thomas J. Delia
DOI:10.1021/jo010573+
日期:2001.10.1
The Suzuki coupling reaction has been used extensively for the synthesis of a wide variety of unsymmetrical biaryl compounds. We have extended this reaction to demonstrate the utility of preparing monophenyl-, diphenyl-, or triphenylpyrimidine depending on the reaction conditions. Further, it has been shown that chloropyrimidine substrates are preferable over iodo-, bromo-, or fluoropyrimidines.
Two Convergent Approaches toward Novel Carbocyclic C-Nucleosides
construction of novel carbocyclic C-nucleosides allowing the syntheses of derivatives with uracil heterobase substituted at the position C-5 as well as C-6 were developed. The crucial step of the first methodology was the reaction of (6-chloro-2,4-dimethoxypyrimidin-5-yl)lithium, the nucleobase precursor, with suitable ketones, the carbocyclic pseudosugar precursors. The second approach was based on