Rationale for the sluggish oxidative addition of aryl halides to Au(I).

Rationale for the sluggish oxidative addition of aryl halides to Au(I).
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DOI:
10.1039/c3cc48914k
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发表时间:
2014-02-14
期刊:
Chemical communications (Cambridge, England)
影响因子:
--
通讯作者:
Echavarren AM
Echavarren AM
中科院分区:
其他
文献类型:
--
作者:
Livendahl M;Goehry C;Maseras F;Echavarren AM

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线性2-配位d10 Au(i)配合物可以通过氧化加成以合理的能量形成Au(iii)物种,尽管接近它们的障碍非常高。Csp 2-Br或Csp 2-I键与金(i)的氧化加成即使在非常有利的分子内条件下也不会发生,所述分子内条件可以形成五元或六元金(iii)金属杂环。DFT计算表明,虽然这一过程在热力学上是可行的,但在动力学上是非常缓慢的。
Linear 2-coordinate d10 Au(i) complexes could form Au(iii) species by oxidative addition with reasonable energies, although the barriers to access them are prohibitively high. The oxidative addition of Csp2–Br or Csp2–I bonds to gold(i) does not take place even under very favorable intramolecular conditions that could form five- or six-membered gold(iii) metallacycles. DFT calculations reveal that although this process could be feasible thermodynamically, it is kinetically very sluggish.
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