کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5270239 | 1385411 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enantioselective aza-Diels-Alder reaction of Brassard's diene with aldimines catalyzed by chiral N,Nâ²-dioxide-Yb(OTf)3 complex
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: Enantioselective aza-Diels-Alder reaction of Brassard's diene with aldimines catalyzed by chiral N,Nâ²-dioxide-Yb(OTf)3 complex Enantioselective aza-Diels-Alder reaction of Brassard's diene with aldimines catalyzed by chiral N,Nâ²-dioxide-Yb(OTf)3 complex](/preview/png/5270239.png)
چکیده انگلیسی
The chiral N,Nâ²-dioxide-Yb(OTf)3 complex-catalyzed enantioselective aza-Diels-Alder reaction of Brassard's diene with aldimines has been developed, giving the corresponding α,β-unsaturated δ-lactam derivatives in moderate yields with good enantioselectivities (up to 81% ee and up to 99% ee by single recrystallization) under mild conditions. Isolation of the reaction intermediate indicates that this asymmetric aza-Diels-Alder reaction proceeds through a stepwise Mannich-type pathway.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 51, Issue 23, 9 June 2010, Pages 3088-3091
Journal: Tetrahedron Letters - Volume 51, Issue 23, 9 June 2010, Pages 3088-3091
نویسندگان
Zhenling Chen, Lili Lin, Donghui Chen, Jiangting Li, Xiaohua Liu, Xiaoming Feng,