Determination of the Nucleophilicity of Tricarbonyliron Coordinated Cyclohepta-1,3,5-triene

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Title:Determination of the Nucleophilicity of Tricarbonyliron Coordinated Cyclohepta-1,3,5-triene
Creators:
Mayr, Herbert
Müller, Karl-Heinz
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 64, 11, pp. 1770-1779
Uncontrolled Keywords:Kinetics, Carbocycles, Electrophilicity, Carbocations, Linear free energy relationships, Iron

Abstract

The kinetics of the electrophilic additions of four diarylcarbenium ions (<strong>4a</strong>-<strong>4d</strong>) to tricarbonyl(η<sup>4</sup>-cyclohepta-1,3,5-triene)iron (<strong>1</strong>) have been studied photometrically. The second-order rate constants match the linear Gibbs energy relationship log <i>k</i><sub>20 °C</sub> = <i>s</i>(<i>E</i> + <i>N</i>) and yield the nucleophilicity parameter <i>N</i>(<strong>1</strong>) = 3.69. It is concluded that electrophiles with <i>E</i> ≥ -9 will react with complex <strong>1</strong> at ambient temperature. <p>

Title:Determination of the Nucleophilicity of Tricarbonyliron Coordinated Cyclohepta-1,3,5-triene
Creators:
Mayr, Herbert
Müller, Karl-Heinz
Uncontrolled Keywords:Kinetics, Carbocycles, Electrophilicity, Carbocations, Linear free energy relationships, Iron
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:64
Number:11
Page Range:pp. 1770-1779
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19991770UNSPECIFIED
ID Code:1594
Item Type:Article
Deposited On:06 Feb 2009 17:10
Last Modified:06 Feb 2009 16:11

Citation

Mayr, Herbert; Müller, Karl-Heinz (1999) Determination of the Nucleophilicity of Tricarbonyliron Coordinated Cyclohepta-1,3,5-triene. Collection of Czechoslovak Chemical Communications, 64 (11). pp. 1770-1779. ISSN 0010-0765

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