کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6618368 | 459654 | 2012 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Some mechanistic studies on electrochemical carboxylation of flavones to yield flavanone-2-carboxylic acids
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Some mechanistic studies on electrochemical carboxylation of flavones to yield flavanone-2-carboxylic acids Some mechanistic studies on electrochemical carboxylation of flavones to yield flavanone-2-carboxylic acids](/preview/png/6618368.png)
چکیده انگلیسی
Electrochemical carboxylation of flavones was successfully demonstrated. Constant current electrolysis of a DMF solution of flavones containing 0.1 M Bu4NBF4 in the presence of carbon dioxide by using a one-compartment cell equipped with a Pt cathode and an Mg anode at 0 °C resulted in fixation of carbon dioxide at the C2-position of flavones in a highly regioselective manner to give flavanone-2-carboxylic acids in moderate to good yields. From the results of some mechanistic examinations, we could conclude that flavanone-2-carboxylic acids were produced through exclusive mono-carboxylation of flavones at the C2-position and that dicarboxylation both at the C2- and C3-positions of flavones hardly proceeded. We report herein details of the electrochemical carboxylation of flavones to obtain flavanone-2-carboxylic acids, and we propose a reaction mechanism for the C2-selective carboxylation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 82, 1 November 2012, Pages 450-456
Journal: Electrochimica Acta - Volume 82, 1 November 2012, Pages 450-456
نویسندگان
Hisanori Senboku, Yusuke Yamauchi, Natsuko Kobayashi, Akihiro Fukui, Shoji Hara,