An efficient and convenient synthetic route to glycosyl 1-β-phosphates has been developed using diallyl chlorophosphate as a phosphorylating agent with 4-N,N-dimethylaminopyridine under mild conditions. Diallyl-glycosyl 1-β-phosphate triesters of d-manno, l-glycero-d-manno-hepto-, d-gluco-, d-galacto-, and l-fuco-pyranose as well as lactose have been obtained by this strategy in good yields and excellent β-selectivities. Furthermore, the diallyl 6-azido-mannosyl 1-β-phosphate 2 was deprotected under mild conditions and converted into potentially clickable analogues of β-mannosyl phosphoisoprenoids I and ADP-heptose II.
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