Syntheses of 5-Thio-D-Mannose from Petrochemicals and a Disaccharide Analog Containing It

<table>a. AcCl/MeOH; b. NaBH4/H2O; c. (i) Ac2O-Py, (ii) 
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 AcOH/DMF,
(ii) K2CO3, CCl3CN; e. 8, TESOTf/CH2Cl2; 
f. 80% AcOH; g. (i) (BnO)2PN(iPr)2, 1H-tetrazole, (ii) 30%
H2O2; h. Et3N-CH3OH; i. 10% 
Pd-C, H2, AcOH-EtOH.</table>

Organic Chemistry International

sch2

Scheme 2

Scheme 2: Syntheses of 5-Thio-D-Mannose from Petrochemicals and a Disaccharide Analog Containing It 