کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5280278 | 1385643 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reusable nano-sized chiral bisoxazoline catalysts
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Reusable nano-sized chiral bisoxazoline catalysts Reusable nano-sized chiral bisoxazoline catalysts](/preview/png/5280278.png)
چکیده انگلیسی
The nano-sized gold particle-based chiral catalyst having two kinds of alkyl thiol spacers, one of which is substituted with the chiral bisoxazoline/copper(II) complex at the end, behaves as reusable homogeneous catalyst. This gold particle complex acts as nearly homogeneous catalyst in the ene reaction between 2-phenylpropene and ethyl glyoxylate in dichloromethane, while it undergoes dense aggregation when diluted with hexane so as to be separated by simple filtration. Thus, the catalyst can be recovered after the completion of reaction by the repeated sequences of solvent exchange, centrifugal treatment, and decantation, followed by the recharge of substrates, and the situation is ready for the second reaction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 46, Issue 44, 31 October 2005, Pages 7623-7626
Journal: Tetrahedron Letters - Volume 46, Issue 44, 31 October 2005, Pages 7623-7626
نویسندگان
Fumiyasu Ono, Shuji Kanemasa, Junji Tanaka,