Regiospecific synthesis of 2(A),2(B)-disulfonated gamma-cyclodextrin

Authors
Teranishi, K Hisamatsu, M Yamada, T
Citation
K. Teranishi et al., Regiospecific synthesis of 2(A),2(B)-disulfonated gamma-cyclodextrin, TETRAHEDR L, 41(6), 2000, pp. 933-936
Citations number
29
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
41
Issue
6
Year of publication
2000
Pages
933 - 936
Database
ISI
SICI code
0040-4039(20000205)41:6<933:RSO2G>2.0.ZU;2-3
Abstract
A method for effective regiospecific preparation of 2(A),2(B)-disulfonated gamma-cyclodextrin has been developed. Reaction of gamma-cyclodextrin with benzophenone-3,3'-disulfonyl imidazole and molecular sieves in DMF yielded 2(A), 2(B)-disulfonated gamma-cyclodextrin with no 2(A), 2(C)-, 2(A), 2(D)- , 2(A), 2(E)-, 3-, or 6-sulfonyl isomers. (C) 2000 Elsevier Science Ltd. Al l rights reserved.