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37.7.1.1.2.1.1 Method 1: 1,4-Elimination of Sulfonic Esters

DOI: 10.1055/sos-SD-037-00438

Robina, I.; Vogel, P.Science of Synthesis, (200837652.

The synthesis of 1,3-anhydro-2,4-O-benzylidene-d-glucitol 44 starts from 2,4-O-benzylidene-1,6-di-O-tosyl-d-glucitol (42) through regioselective generation of epoxide 43, followed by oxetane formation and epoxide ring opening. Final deprotection under acidic conditions gives the 1,3-anhydro-d-glucitol derivative 45 (Scheme 8).[‌42‌]

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