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Bis(2,3:5,6-di-O-isopropylidene-D-mannitol) orthocarbonate

✍ Scribed by B.S. Shasha; W.M. Doane; W.K. Rohwedder

Publisher
Elsevier Science
Year
1966
Tongue
French
Weight
146 KB
Volume
7
Category
Article
ISSN
0040-4039

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✦ Synopsis

ge~~~~tha~~~mdl~t~i~~ofa~lortho-~~~rl~~~ofa~,tha~tnrctunof~ohhu~~~of 2,3:5,64i4-~o~ro~yudene~-amrmi~1 w M through the w l tcm~tC-luKlC-4to~aarLwldc4l. 10 have reported (1) Wt bir(l,24-ieopmpylidene-34-thhaWmyl-Q-p-e-furamae)dWAfldeundergoeea w-fragmentawon ~tunug hpyrpJrridha to give equh01u? mtd 0f 1,24-hp~iiu-&gluoofurmwe, 1,24-ieopmpy1~~1uoofurame 5,6-thfmooarbx~-

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The 2,3:4,5-( 8) and 2,4:3,5-di-0-isopropylidene (10) derivatives of Dmannitol have been prepared from 1,6-di-0-benzoyl-D-mannitol and their structures established by 13C-n.m.r. spectroscopy. The 1,3-dioxane rings in 10 adopt a skew conformation and the sugar carbon chain in 8 is bent around the C-3