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- W2952156535 abstract "Abstract Two phosphite sialyl donors, each having an auxiliary 3-( S )-phenylseleno group, were prepared and evaluated. The phenylseleno group was introduced via a new mode of generating phenylselenenic acid (‘PhSeOH’). Although the sialyl donors provided fair yields (32–76%) of the desired sialosides in glycosylations of the reactive acceptor 1,2;3,4-di- O -isopropylidene-α- d -galactopyranose, no sialylated products could be obtained with less reactive acceptors. The presence of a 5- N -acetylacetamido group on the phosphite sialyl donor did not appear to improve its sialylating capability. The weak CSe bond, possibly in combination with a steric hindrance, which disfavors α-nitrilium ion formation, seem to explain the unsuccessful sialylations of the less reactive acceptors." @default.
- W2952156535 created "2019-06-27" @default.
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- W2952156535 date "2010-05-24" @default.
- W2952156535 modified "2023-09-26" @default.
- W2952156535 title "ChemInform Abstract: A Study of the Donor Properties of Sialyl Phosphites Having an Auxiliary 3-(S)-Phenylseleno Group." @default.
- W2952156535 cites W2122658104 @default.
- W2952156535 doi "https://doi.org/10.1002/chin.200136192" @default.
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