کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5222285 | 1383449 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hypervalent iodine-mediated aminobromination of olefins in water
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The PhI(OAc)2-catalyzed aminobromination of electron-deficient olefins has been achieved in pure water with TsNH2 and NBS as nitrogen and bromine sources, respectively. With a catalytic amount of PhI(OAc)2, various olefins including α,β-unsaturated ketones, cinnamates, and cinnamides could be aminobrominated efficiently, giving the vicinal bromoamines in good yields and high regio- and diastereoselectivities. Utilizing water as solvent was crucial to realize this aminobromination reaction catalytically. The regioselectivity for the aminobromination of styrenes under the present aqueous conditions was also dramatically improved.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 65, Issue 43, 24 October 2009, Pages 8802-8807
Journal: Tetrahedron - Volume 65, Issue 43, 24 October 2009, Pages 8802-8807
نویسندگان
Xue-Liang Wu, Guan-Wu Wang,