- Direct synthesis of amphiphilic α-, β-, and γ-cyclodextrins
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The clean one step synthesis of the amphiphilic α-, β-, and γ-cyclodextrins starting from per-(6-bromo-6-deoxy)-α-, -β-, and -γ-cyclodextrins is described. The role of the lipophilic tail is played by various aryl groups (phenyl, p-bromophenyl, p-O-butoxyphenyl, p-pentylphenyl, and o-, m-, and p-nitrophenyl) linked by a thioether bridge to the position C-6 of each glucopyranose unit. The yields of the S-alkylation reactions were very high (85-95%).
- Chmurski, Kazimierz,Coleman, Antony W.,Jurczak, Janusz
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- Improved preparation of hexakis(6-deoxy)cyclomaltohexaose and heptakis(6-deoxy)cyclomaltoheptaose
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Hexakis(6-deoxy)cyclomalto-hexaose and hexakis(6-deoxy)cyclomalto-hexaose were prepared by direct halogenation of cyclodextrins, with high yields. Direct bromination of cyclomaltohexaose for 15 hours gave a 93% yield.
- Baer,Vargas Berenguel,Shu,Defaye,Gadelle,Santoyo Gonzalez
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p. 307 - 314
(2007/10/02)
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