کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1327496 977485 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, X-ray structures, and catalytic activities of (κ2-C,N)-palladacycles bearing imidazol-2-ylidenes
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Synthesis, X-ray structures, and catalytic activities of (κ2-C,N)-palladacycles bearing imidazol-2-ylidenes
چکیده انگلیسی

Quaternisation of methylimidazole (1) by methyl substituted benzyl bromides afforded imidazolium salts (2) which were converted to (κ2-C,N)-palladacycles bearing imidazol-2-ylidenes 6 or 7, by either in situ deprotonation or via Ag–NHC intermediate (3), using the bridged palladacycles 4 or 5, respectively. The palladacycles 6 and 7 were characterized by elemental analysis; NMR spectroscopy and the molecular structure of 6c and 7c were determined by X-ray crystallography. The complexes 6 and 7 display high activity in Suzuki–Miyaura coupling of a range of aryl bromides.

Quaternisation of methylimidazole by methyl substituted benzyl bromides afforded imidazolium salts which were converted to (κ2-C,N)-palladacycles bearing imidazol-2-ylidenes, by either in situ deprotonation or via Ag–NHC intermediate, using the bridged palladacycles.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Organometallic Chemistry - Volume 694, Issue 15, 1 July 2009, Pages 2343–2349
نویسندگان
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