کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5285195 | 1385752 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hetero-bifunctionalization of the secondary face of β-cyclodextrin: selective 3G-sulfonylation and subsequent 2G,3G-epoxidation of 3A-azido-3A-deoxy-altro-β-cyclodextrin
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
3A-Azido-3A-deoxy-altro-β-cyclodextrin, which has 20 different hydroxyl groups, was selectively sulfonylated by 1-naphthalenesulfonyl chloride at the 3G-OH of the glucoside residue as well as the 2A-OH of the altroside one. Alkali treatment of the 3G-sulfonate gave successfully the 2G,3G-epoxyalloside with the 3A-azido group being left unaffected. Both the 3G-sulfonate and 2G,3G -alloepoxide species of 3A-azido-3A-deoxy-altro-β-cyclodextrin not only have two sugar units being modified differently, but also can serve as versatile starting materials for the syntheses of bifunctional cyclodextrins with diverse combination of different functionalities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 47, Issue 37, 11 September 2006, Pages 6599-6602
Journal: Tetrahedron Letters - Volume 47, Issue 37, 11 September 2006, Pages 6599-6602
نویسندگان
Makoto Fukudome, Aya Matsushima, De-Qi Yuan, Kahee Fujita,