کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
68830 | 48524 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Easily recyclable polymeric V(V) salen complex for the enantioselective O-acetyl cyanation of aldehydes
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Easily recyclable polymeric V(V) salen complex for the enantioselective O-acetyl cyanation of aldehydes Easily recyclable polymeric V(V) salen complex for the enantioselective O-acetyl cyanation of aldehydes](/preview/png/68830.png)
چکیده انگلیسی
A new recyclable polymeric V(V) salen complex 1 derived from poly[(R,R)-N,N′-bis-{3-(1,1-dimethylethyl)-5-methylene salicylidene} cyclohexane 1,2-diamine] with vanadyl sulphate was synthesized and characterized by microanalysis, 1H NMR, optical rotation, IR, and UV–vis spectroscopy. The complex 1 was used as catalyst for asymmetric O-acetyl cyanation of various aldehydes with KCN as an inexpensive and non-volatile cyanide source and acetic anhydride at −20 °C. High chiral induction (ee, 96%) for O-acetylcyanohydrin was obtained in the case of 2-methylbenzaldehyde with added advantage of catalyst recyclability.
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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 264, Issues 1–2, 1 March 2007, Pages 140–145
Journal: Journal of Molecular Catalysis A: Chemical - Volume 264, Issues 1–2, 1 March 2007, Pages 140–145
نویسندگان
Noor-ul H. Khan, Santosh Agrawal, Rukhsana I. Kureshy, Sayed H.R. Abdi, Vishal J. Mayani, Raksh V. Jasra,