کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1390187 1500857 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
New ureas containing glycosyl and diphenylphosphinyl scaffolds: synthesis and the first attempts to use them in asymmetric synthesis
ترجمه فارسی عنوان
اوره جدید حاوی گلیکوسیل و دیفنیل فسفینیل داربست: سنتز و اولین تلاش برای استفاده از آنها در سنتز نامتقارن
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی


• Tandem Staudinger/aza-Wittig reaction of a 1-azidosaccharide derivatives with amines.
• Chiral bifunctional saccharide–urea catalysts were used.
• An enantioselective Morita–Baylis–Hillman reaction is described.
• Enantioselectivity was measured by HPLC.

Chiral ureas containing glycosyl and diphenylphosphinyl scaffolds were found to be an effective organocatalyst. They were synthesised in high yields by a one-pot tandem Staudinger/aza-Wittig coupling reaction. The first attempts of using them in asymmetric synthesis are presented. Yields of the Morita–Baylis–Hillman reaction were moderate with an enantiomeric excess of up to 80%.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Research - Volume 394, 23 July 2014, Pages 7–12
نویسندگان
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