Indolyne and aryne distortions and nucleophilic regioselectivites.
Indolyne and aryne distortions and nucleophilic regioselectivites.
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DOI:
10.1021/ja9098643
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发表时间:
2010-02-03
影响因子:
15
通讯作者:
Houk KN
中科院分区:
文献类型:
--
作者:
Cheong PH;Paton RS;Bronner SM;Im GY;Garg NK;Houk KN
DFT computations reproduce the surprisingly high regioselectivities in nucleophilic additions and cycloadditions to 4,5-indolynes, and the low regioselectivities in reactions of 5,6-indolynes. Transition state distortion energies control regioselectivities, activating the 5 and 6 positions over 4 and 7 positions, leading to high preferences for 5 and 6-substituted product from 4,5- and 6,7-indolynes, respectively. Orbital and electrostatic interactions have only minor effects, producing low regioselectivities in reactions of 5,6-indolynes. The distortion model predicts high regioselectivities with 6,7-indolynes; these are verified experimentally. The regioselectivities found with other benzynes are explained on the basis of distortion energies that are reflected in reactant geometries.
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影响因子:
15
作者:
NAGASE, S;MOROKUMA, K
通讯作者:
MOROKUMA, K
影响因子:
1.8
作者:
Brown, Neil;Luo, Diheng;Velde, David Vander;Yang, Shaorong;Brassfield, Allen;Buszek, Keith R.
通讯作者:
Buszek, Keith R.
影响因子:
1.8
作者:
Brown N;Luo D;Decapo JA;Buszek KR
通讯作者:
Buszek KR
影响因子:
3.6
作者:
Xidos, JD;Poirier, RA;Burnell, DJ
通讯作者:
Burnell, DJ
影响因子:
5.2
作者:
Bronner, Sarah M.;Bahnck, Kevin B.;Garg, Neil K.
通讯作者:
Garg, Neil K.