کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1258190 | 971606 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photopromoted carbonylation of bromobenzene under ambient conditions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Photopromoted carbonylation of bromobenzene under ambient conditions Photopromoted carbonylation of bromobenzene under ambient conditions](/preview/png/1258190.png)
چکیده انگلیسی
The photopromoted carbonylation of bromobenzene with carbon monoxide catalyzed by inexpensive commercially available cobalt salts [Co(OAc)2, CoCl2] was carried out under ambient conditions. The results revealed that methyl benzoate was produced in the presence of basic additives (CH3ONa, NaOAc or (n-C4H9)3N). The catalytic activity of Co(OAc)2 was higher than that of CoCl2. Furthermore, the activity of the carbonylation was greatly improved by addition of acetophenone, e.g. both the yield and selectivity of the ester were increased from 47% to 91% with Co(OAc)2 as catalyst and CH3ONa as additive, while the yield of by-product benzene from hydrodehalogenation of bromobenzene decreased from 32% to 8%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Chemical Letters - Volume 20, Issue 5, May 2009, Pages 531–534
Journal: Chinese Chemical Letters - Volume 20, Issue 5, May 2009, Pages 531–534
نویسندگان
Li Zhuo Mu, Ying Ping Jia, Jing Mei Yin, Guang Yun Zhou, Ying Na Cui, Da Bin Gao,