Ph2SO/Tf2O:: a powerful promotor system in chemoselective glycosylations using thioglycosides
Ph2SO/Tf2O:: a powerful promotor system in chemoselective glycosylations using thioglycosides
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DOI:
10.1021/ol034312t
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发表时间:
2003-05-01
期刊:
影响因子:
5.2
通讯作者:
van der Marel, GA
中科院分区:
文献类型:
--
作者:
Codée, JDC;Litjens, REJN;van der Marel, GA
[GRAPHICS]Diphenylsulfoxide in combination with triflic anhydride provides a very potent thiophilic glycosylation promotor system, capable of activating disarmed thioglycosides. The usefulness of this novel thiophilic activator is illustrated in a successful chemoselective glycosylation sequence in which the donor thioglycoside in the first condensation step may be either armed or disarmed.