Selective synthesis of phosphate monoesters by dehydrative condensation of phosphoric acid and alcohols promoted by nucleophilic bases

Akira Sakakura, Mikimoto Katsukawa, Kazuaki Ishihara

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(Chemical Equation Presented) Phosphate monoesters are synthesized from a mixture of phosphoric acid (1 or 2 equiv) and alcohols (1 equiv) in the presence of tributylamine. The reaction is promoted by nucleophilic bases such as N-alkylimidazole and 4-(N,N-dialkylamino)pyridine. 2′,3′-I- Isopropylidene ribonucleosides are selectively converted to their 5′-monophosphates without the protection of amino groups in nucleobases.

Original languageEnglish
Pages (from-to)1999-2002
Number of pages4
JournalOrganic Letters
Issue number10
Publication statusPublished - May 12 2005


ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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