Base-promoted aryl carbon-iodine bond activation by cobalt(ii) porphyrins: scope and mechanism.
本論文的研究包括Co(por)Ar的合成和對Ar-I鍵被Co(por)活化的机理研究。首先,一系列Co(por)Ar成功的由Co(por)和取代碘帶苯在150 ℃和氫氧化鉀的作用下合成并得到中等到高的产率。 === 其次,自由能研究表明 Co(por)對Ar-I键的活化是通过碘原子轉移進行的。相对速率k[subscript rel]从取代碘代苯和碘代苯同Co(por)的競爭反應得出。自由能關係研究表明logk[subscript rel]同取代常數σp-的哈密特相关给出一斜率為1.02的直線,表明高度離域的负电荷在苯环的增加和碘原子的π電子同對位取代基在過渡態的共軛。基于这个事实和对其它机理的...
Other Authors: | Li, Chen. |
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Format: | Others |
Language: | English Chinese |
Published: |
2012
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Subjects: | |
Online Access: | http://library.cuhk.edu.hk/record=b5549052 http://repository.lib.cuhk.edu.hk/en/item/cuhk-328311 |
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