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β‐Cycloaltrin: A Cyclooligosaccharide Consisting of Seven α(1 → 4)‐Linked Altropyranoses
Author(s) -
Fujita Kahee,
Shimada Hideaki,
Ohta Kazuko,
Nogami Yasuyoshi,
Nasu Kyoko,
Koga Toshitaka
Publication year - 1995
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199516211
Subject(s) - yield (engineering) , hydrolysis , sugar , unit (ring theory) , ring (chemistry) , cyclodextrin , simple (philosophy) , mathematics , chemistry , stereochemistry , combinatorics , crystallography , materials science , organic chemistry , philosophy , composite material , mathematics education , epistemology
A surprisingly simple approach —heating per‐2,3‐anhydro‐(2 S )‐β‐cyclodextrin in water at reflux—provides the novel cyclooligosaccharide β‐cycloaltrin ( 1 ) in 73% yield. In this one‐step hydrolysis, ring opening results in the altro configuration in every sugar unit. The inclusion properties of 1 should be interesting.