On the impact of steric and electronic properties of ligands on gold(I)-catalyzed cycloaddition reactions.
On the impact of steric and electronic properties of ligands on gold(I)-catalyzed cycloaddition reactions.
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DOI:
10.1021/ol9018002
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发表时间:
2009-11-05
期刊:
影响因子:
5.2
通讯作者:
Toste FD
中科院分区:
文献类型:
--
作者:
Benitez D;Tkatchouk E;Gonzalez AZ;Goddard WA 3rd;Toste FD
It is shown that [4+3] and [4+2] cycloaddition pathways are accessible in the Au(I) catalysis of allene-dienes. Seven-membered ring gold-stabilized carbenes, originating from the [4+3] cycloaddition process, are unstable and can rearrange via a 1,2-H or a 1,2-alkyl shift to yield six- and seven-membered products. Both steric and electronic properties of the AuL+ catalyst affect the electronic structure of the intermediate gold-stabilized carbene and its subsequent reactivity.
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