The carbonylation of phenyl bromide and its derivatives under visible light irradiation
The carbonylation of phenyl bromide and its derivatives under visible light irradiation
复制标题
可见光照射下溴苯及其衍生物的羰基化反应
DOI:
10.1016/j.cclet.2011.09.024
复制
发表时间:
2012
影响因子:
9.1
通讯作者:
Yin, Jing Mei
中科院分区:
文献类型:
--
作者:
Zhong, Wen Hui;Cui, Ying Na;Li, Shen Min;Jia, Ying Ping;Yin, Jing Mei
The carbonylation of phenyl bromide catalyzed by Co(OAc)2has been investigated with PhCOPh as a sensitizer under visible light in the presence of basic additive. With strong base CH3ONa, PhCOOCH3is produced in 70% yield with 100% selectivity, the similar results are also obtained with a stronger base (CH3)3CONa. However, with another strong base NaOH, the yield of the ester is only 40%. On the other hand, with weak base NaOAc or (n-C4H9)3N, phenyl bromide cannot be carbonylated. The results of carbonylation of the six substituted phenyl bromides suggest that the activities of o, m, p-BrC6H4CH3are similar to phenyl bromide, while the activities of o, m, p-BrC6H4Cl are higher with the high yields (≥93%) of the corresponding chloro-esters. In addition, the relative position of bromine and chlorine or methyl on phenyl ring has little effect on the activity of the carbonylation.
登录
查看更多内容
影响因子:
1.6
作者:
Tsugunori Kashimura;K. Kudo;S. Mori;N. Sugita
通讯作者:
Tsugunori Kashimura;K. Kudo;S. Mori;N. Sugita
DOI:
--
发表时间:
1977
期刊:
--
影响因子:
--
作者:
M. Sienko;R. Plane
通讯作者:
M. Sienko;R. Plane
影响因子:
1.8
作者:
D. Cash;A. Combs;V. Dragojlovic
通讯作者:
D. Cash;A. Combs;V. Dragojlovic
影响因子:
3.6
作者:
BRUNET, JJ;SIDOT, C;CAUBERE, P
通讯作者:
CAUBERE, P
影响因子:
15
作者:
MOSER, WR;WANG, AW;KILDAHL, NK
通讯作者:
KILDAHL, NK