An improved method for the preparation of methyl dichlorophosphite. A key reagent in the phosphite method of oligonucleotide synthesis

Z. Tashma, J. Deutsch, S. Cohen, M. Weisz, J. Katzhendler, I. Ringel

Research output: Contribution to journalArticlepeer-review

Abstract

The reaction between phosphorus trichloride (PCl3) and trimethyl phosphite (CH3O)3P has been examined by 31Pnmr, in order to achieve a simple and efficient procedure for the formation of methyl dichlorophosphite (CH3OPCl2), which is a key intermediate in the synthesis of oligonucleo-tides. The yield of the reaction was also studied on a preparative scale and it was found that the optimal condition is obtained when the reactants molar ratio is 1:1.

Original languageEnglish
Pages (from-to)589-595
Number of pages7
JournalNucleosides and Nucleotides
Volume6
Issue number3
DOIs
StatePublished - 1 Jun 1987

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