کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
51489 | 46844 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Efficient palladium-catalyzed Heck reactions mediated by the diol-functionalized imidazolium ionic liquids
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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![عکس صفحه اول مقاله: Efficient palladium-catalyzed Heck reactions mediated by the diol-functionalized imidazolium ionic liquids Efficient palladium-catalyzed Heck reactions mediated by the diol-functionalized imidazolium ionic liquids](/preview/png/51489.png)
چکیده انگلیسی
The diol-functionalized imidazolium ionic liquids, 1-(2,3-dihydroxypropyl)-3-methylimidazolium hexafluorophosphate (1) and 2,2-bis(1-methyl-methylimidazolium) propane-1,3-diol hexafluorophosphate (2), were synthesized and used as the phosphine-free ligands in the palladium-catalyzed Heck reaction of aryl bromides with electron-deficient olefins. Under aerobic conditions, the efficient arylation of acrylates could be accomplished when catalyzed by PdCl2-2 (or 1) in DMF with Et3N as a base, in terms of good activities, excellent selectivities (to trans-coupling products), and reusability, due to the available multiple coordinating sites like bidentate diol and NHC carbene in the ligands.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Communications - Volume 10, Issue 10, 20 May 2009, Pages 1390–1393
Journal: Catalysis Communications - Volume 10, Issue 10, 20 May 2009, Pages 1390–1393
نویسندگان
Yueqin Cai, Ye Liu,