Synthesis of ,-Dialkyl Adenine Nucleosides With In Situ Formed Hexaalkylphosphorus Triamides
Overview
Affiliations
Reactions between secondary amines and phosphorus trichloride (PCl) leads to the formation of the corresponding tris(dialkylamino)phosphines or hexaalkylphosphorus triamides [HAPT: (RN)P]. Reaction of silyl-protected 2'-deoxyinosine and acetyl-protected inosine with the in situ formed HAPT and iodine (I) leads to the formation of ,-dialkyl adenosine and 2'-deoxyadenosine. In some cases the stoichiometry of the amine is important as also the use of a tertiary amine base. The effect of amine stoichiometry on the reaction of HAPT with I has been studied by P{H} NMR.
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