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1996 (1)
1Author    WilhelmV. Dahlhoffd, Karin Radkowskia, Ingo Dierkingb, Peter ZugenmaierbRequires cookie*
 Title    Amphiphilic Carbohydrate-Based Mesogens, 12 [1] High-Yield Synthesis of Mesogenic l-O-Alkanoyl-D/L-Xylitols  
 Abstract    The equilibrium mixture of 1,2:3,4-and l,3:2,4-di-0-ethylboranediyl-D /L-xylitols 1 and 1' obtained on reaction o f three equivalents of xylitol with two equivalents of triethylboroxin, reacts with alkanoyl chlorides (heptanoyl-dodecanoyl) to give equilibrium mixtures of the O-ethylboranediyl protected l-O-alkanoyl-D.L-xylitols 2,2' after vacuum distillation. Depro­ tection of the latter affords the title amphiphilic esters 3 which melt to give the smectic A liquid-crystalline phase. 
  Reference    Z. Naturforsch. 51b, 1229—1234 (1996); received April 26 1996 
  Published    1996 
  Keywords    Carbohydrates, Amphiphiles, Liquid Crystals (Smectic), 1-0-A lkanoyl-D, L-X ylitols, X-Ray 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-1229.pdf 
 Identifier    ZNB-1996-51b-1229 
 Volume    51