کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1251376 | 970905 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of (BCO)n Substituent on Claisen Rearrangement of Phenyl Allyl Ether*
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of (BCO)n Substituent on Claisen Rearrangement of Phenyl Allyl Ether*
Effects of (BCO)n Substituent on Claisen Rearrangement of Phenyl Allyl Ether*](/preview/png/1251376.png)
چکیده انگلیسی
Considering the isolobal analogy between two fragments CH and BCO, the calculations on the reactants, products, and transition states for the Claisen rearrangement of (BCO)n-substituted phenyl allyl ethers at the B3P86/6-311 + G** level was performed in this study. The transition states of (BCO)n-substituted systems have looser and more structures with dipole nature. The substitutions of CH by BCO do favor the reduction of the free energies of activation and the enhancement of stabilization of both reactants and products. A Marcus theory and frontier molecular orbitals were used to separate the thermodynamic and intrinsic contributions to the activation energies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Research in Chinese Universities - Volume 23, Issue 2, March 2007, Pages 212-216
Journal: Chemical Research in Chinese Universities - Volume 23, Issue 2, March 2007, Pages 212-216
نویسندگان
Xiao-qin PEI, Jian-feng JIAN, Hai-shun WU,