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2001:
Parang K; Fournier E J; Hindsgaul O
A solid phase reagent for the capture phosphorylation of carbohydrates and nucleosides.
Organic letters 2001;
3(
2):.
[figure: see text] A 1% cross-linked divinylbenzene-polystyrene copolymer, containing cyanoethoxy N,N-diisopropylamine phosphine was prepared as a phosphitylating agent. The polymer-bound phosphitylated precursor was subjected to reaction with alcohols in the presence of 1H-tetrazole to produce the corresponding polymer-bound phosphite triesters. These were then oxidized with tert-butyl hydroperoxide to give the polymer-bound monophosphate triesters. Removal of cyanoethoxy on the resin with 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) followed by basic cleavage of the p-hydroxybenzyl linker products yielded monophosphate derivatives.
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