Steric effects compete with aryne distortion to control regioselectivities of nucleophilic additions to 3-silylarynes.
Steric effects compete with aryne distortion to control regioselectivities of nucleophilic additions to 3-silylarynes.
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DOI:
10.1021/ja306723r
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发表时间:
2012-08-29
影响因子:
15
通讯作者:
Garg NK
中科院分区:
文献类型:
--
作者:
Bronner SM;Mackey JL;Houk KN;Garg NK
We report an experimental and computational study of 3-silylarynes. The addition of nucleophiles yield ortho-substituted products as a result of aryne distortion, but meta-substituted products form predominately when the nucleophile is large. Computations correctly predict the preferred site of attack observed in both nucleophilic addition and cycloaddition experiments. Nucleophilic additions to 3-t-butylbenzyne, which is not significantly distorted, give meta-substituted products.
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影响因子:
15
作者:
Lam, Yu-hong;Cheong, Paul Ha-Yeon;Mata, Jose M. Blasco;Stanway, Steven J.;Gouverneur, Veronique;Houk, K. N.
通讯作者:
Houk, K. N.
影响因子:
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通讯作者:
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