کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5269640 | 1385394 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Solvent-free Mukaiyama and Mukaiyama-Michael vinylogous reactions of a dioxinone-derived silyl enol ether promoted by Lewis bases
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The vinylogous aldol-type addition of a dienolsilyl ether, derived from 2,2,6-trimethyl-4H-1,3-dioxin-4-one, showed to occur with complete γ-selectivity by enolate activation promoted by neutral Lewis bases under solvent-free conditions. Moderate to high yields were obtained with aromatic, hetero-aromatic, and aliphatic aldehydes, as well as activated ketones. Under the same conditions and in the absence of catalyst, the first Mukaiyama-Michael addition of the masked acetoacetate ester to α,β-unsaturated aldehydes took place in satisfactory way.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron Letters - Volume 51, Issue 28, 14 July 2010, Pages 3658-3661
Journal: Tetrahedron Letters - Volume 51, Issue 28, 14 July 2010, Pages 3658-3661
نویسندگان
Arrigo Scettri, Vincenzo De Sio, Rosaria Villano, Patrizia Manzo, Maria Rosaria Acocella,