2007
DOI: 10.1016/j.tetasy.2007.10.004
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syn-Selective dihydroxylation of γ-amino-α,β-unsaturated (Z)-esters from d-serine: stereoselective synthesis of d-iminolyxitol

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Cited by 12 publications
(6 citation statements)
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“…Prolonging the reaction time to 120 h afforded a complex reaction mixture (Table 1, Entry 4). Having no success with Sharpless asymmetric dihydroxylation, we employed an Upjohn dihydroxylation 36. Using a catalytic amount of OsO 4 and 2.5 equiv.…”
Section: Resultsmentioning
confidence: 99%
“…Prolonging the reaction time to 120 h afforded a complex reaction mixture (Table 1, Entry 4). Having no success with Sharpless asymmetric dihydroxylation, we employed an Upjohn dihydroxylation 36. Using a catalytic amount of OsO 4 and 2.5 equiv.…”
Section: Resultsmentioning
confidence: 99%
“…A very efficient synthesis of (2 S ,3 S ,4 S )- 4 starts from another serine-derived chiron, namely O -benzyl- N -Boc-D-serine [111], which was readily transformed to the Z -olefin 120 containing a benzophenone imine residue as a nitrogen protecting group (Scheme 29). Dihydroxylation of the C=C bond gave a 10:1 mixture with (2 S ,3 S ,4 R )- 121 as a major product which was transformed into the isopropylidene derivative (2 S ,3 S ,4 R )- 122 to facilitate purification.…”
Section: Reviewmentioning
confidence: 99%
“…Dihydroxylation of the C=C bond gave a 10:1 mixture with (2 S ,3 S ,4 R )- 121 as a major product which was transformed into the isopropylidene derivative (2 S ,3 S ,4 R )- 122 to facilitate purification. Hydrogenolysis allowed to remove the N- and O-protecting groups and was followed by the spontaneous cyclization to a pyrrolidine-2-one (3 S ,4 S ,5 R )- 123 [111]. Oxidation of the hydroxymethyl group and acid hydrolysis gave (2 S ,3 S ,4 S )- 4 [112].…”
Section: Reviewmentioning
confidence: 99%
“…The obtained amino diol was used for the synthesis of protected (2R,3R,4S)-4,7-diamino-2,3-dihydroxyheptanoic acid 76 found in marine natural products, callipeltin A and D [36]. Stereoselective syntheses of D-iminolyxitol 79 [37] and (2S,3S,4S)-3,4-dihydroxyglutamic acid 80 [38] were also successfully achieved by the syn selective dihydroxylation of α,β-unsaturated (Z)-ester from L-serine (Scheme 2).…”
Section: Carbonyl Group-conjugated Allylic Aminesmentioning
confidence: 99%