کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5224429 | 1383517 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
3-exo-tet Cyclization of 2,2-disubstituted 1,3-dihalopropanes with indium in aqueous and ionic liquid solvent system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: 3-exo-tet Cyclization of 2,2-disubstituted 1,3-dihalopropanes with indium in aqueous and ionic liquid solvent system 3-exo-tet Cyclization of 2,2-disubstituted 1,3-dihalopropanes with indium in aqueous and ionic liquid solvent system](/preview/png/5224429.png)
چکیده انگلیسی
The 3-exo-tet cyclization of 2,2-disubstituted 1,3-dihalopropanes with In powder in THF solution of 20% H2O, dioxane solution of 20% H2O, and ionic liquids, such as [bmim]Br, [bmim]Cl, and [bmin]BF4, respectively, was efficiently carried out to form the corresponding 1,1-disubstituted cyclopropanes in good yields. The cyclopropanation of 2,2-disubstituted 1,3-dihalopropanes with In powder in ionic liquids, such as [bmim]Br, [bmim]Cl, and [bmin]BF4, was markedly accelerated compared with that in a THF solution of 20% H2O and a dioxane solution of 20% H2O. The mechanism was proposed to involve the radical 3-exo-tet cyclization of the formed 3-halopropyl radical.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 65, Issue 36, 5 September 2009, Pages 7533-7537
Journal: Tetrahedron - Volume 65, Issue 36, 5 September 2009, Pages 7533-7537
نویسندگان
Yuhsuke Tsuchiya, Yuhta Izumisawa, Hideo Togo,