کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9562578 | 1382956 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New soluble TADDOL-bearing polymers. Preparation and their use as Ti-complex catalysts for enantioselective addition of diethylzinc to benzaldehyde
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Soluble polymer supported TADDOLs have been prepared by copolymerising the styryl derivative of TADDOL with styrene or N-isopropylacrylamide, NIPAAm, and the efficiency of their complexes with Ti(IV) as catalysts in enantioselective addition of Et2Zn to benzaldehyde in toluene is reported. The copolymer with styrene gave very high yield (>90%) and excellent enantioselectivity, 98% ee, while the copolymer with NIPAAm afforded a slightly lower yield (55%), but a very high ee (90%).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 62, Issue 3, March 2005, Pages 231-240
Journal: Reactive and Functional Polymers - Volume 62, Issue 3, March 2005, Pages 231-240
نویسندگان
Sylvestre Degni, Satu Strandman, Pasi Laari, Markus Nuopponen, Carl-Erik Wilén, Heikki Tenhu, Ari Rosling,