کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5272265 1385461 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Exploration of copper and amine-free Sonogashira cross coupling reactions of 2-halo-3-alkyl imidazo[4,5-b]pyridines using tetrabutyl ammonium acetate as an activator under microwave enhanced conditions
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Exploration of copper and amine-free Sonogashira cross coupling reactions of 2-halo-3-alkyl imidazo[4,5-b]pyridines using tetrabutyl ammonium acetate as an activator under microwave enhanced conditions
چکیده انگلیسی

Enhancing the reactivity of the catalytic system by using palladium catalyst with sterically demanding and electron rich ligands attached to it has often been shown as an appropriate way of performing the copper-free Sonogashira reaction. In this paper, we report PdCl2(PCy3)2 as an efficient catalyst for the copper and amine-free Sonogashira cross coupling reactions of 2-halo-3-alkyl imidazo[4,5-b]pyridines (I, Br, Cl) using tetrabutyl ammonium acetate as an activator under microwave enhanced conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 53, Issue 39, 26 September 2012, Pages 5206-5210
نویسندگان
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