C-alkenylation of pyrimidine nucleosides and their analoguesстатья
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Дата последнего поиска статьи во внешних источниках: 27 мая 2015 г.
Аннотация:Methods for C-alkenylation of pyrimidine nucleosides and their analogues at the heterocycle are surveyed. The methods using organoelement derivatives of nucleosides (organo-mercury, -tin, -boron and -lithium), those using organoelement derivatives of alkenes (organo-magnesium, -boron, -aluminium, -tin and -silicon), oxidative addition catalysed by palladium compounds and photochemical reactions are considered. The reaction conditions (the role of solvents, catalysts and co-catalysts, temperature conditions and time) are discussed. The advantages and drawbacks of various methods for the introduction of alkenyl groups are considered. Examples of practical application of alkenylated derivatives of nucleosides and their analogues are presented.