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Structural and catalytic studies on ...

Chiong, Hendrich A.

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Structural and catalytic studies on palladium and silver complexes.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Structural and catalytic studies on palladium and silver complexes./
Author:	Chiong, Hendrich A.
Description:	202 p.
Notes:	Source: Dissertation Abstracts International, Volume: 68-12, Section: B, page: 8030.
Contained By:	Dissertation Abstracts International68-12B.
Subject:	Chemistry, Inorganic. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3294920
ISBN:	9780549392507

Structural and catalytic studies on palladium and silver complexes.
Chiong, Hendrich A.

Structural and catalytic studies on palladium and silver complexes. - 202 p.

Source: Dissertation Abstracts International, Volume: 68-12, Section: B, page: 8030.

Thesis (Ph.D.)--University of Houston, 2007.

Palladium is a useful catalyst in transforming the C-H bond into other functional groups. In this dissertation, an efficient and general electron-rich intermolecular heterocycle arylation process based on C-H activation has been developed. This methodology is the first general method for electron-rich heterocycle arylation with aryl chlorides. Mechanistic studies point to an electrophilic substitution pathway as the most likely mechanism for the reaction.

ISBN: 9780549392507Subjects--Topical Terms:

517253
Chemistry, Inorganic.

Structural and catalytic studies on palladium and silver complexes.
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100 1 $a Chiong, Hendrich A. $3 1669780
245 1 0 $a Structural and catalytic studies on palladium and silver complexes.
300 $a 202 p.
500 $a Source: Dissertation Abstracts International, Volume: 68-12, Section: B, page: 8030.
502 $a Thesis (Ph.D.)--University of Houston, 2007.
520 $a Palladium is a useful catalyst in transforming the C-H bond into other functional groups. In this dissertation, an efficient and general electron-rich intermolecular heterocycle arylation process based on C-H activation has been developed. This methodology is the first general method for electron-rich heterocycle arylation with aryl chlorides. Mechanistic studies point to an electrophilic substitution pathway as the most likely mechanism for the reaction.
520 $a In addition, two methods for direct ortho-arylation of benzoic acids have been developed. The first method involves the use of catalytic palladium acetate, stoichiometric silver acetate, and an aryl iodide coupling partner. This method most likely proceeds through a Pd(II)-Pd(IV) coupling cycle. The second method involves the use of catalytic palladium in combination with n-butyldi-1-adamantylphosphine, cesium carbonate base, and an aryl chloride coupling partner. The reaction requires the presence of molecular sieves. Benzoic acids of any electronic properties are reactive. Inter- and intramolecular isotope effects for the benzoic acid arylation by aryl chlorides have been determined and were found to be the same with a magnitude of 4.4, pointing toward heterolytic C-H bond cleavage as the turnover-limiting step.
520 $a Finally, the first silver(I) beta-diketiminate complexes have been prepared and characterized. The structures of a silver(I)-ethylene, -acetonitrile, -triphenylphosphine, tert-butylisocyanide and 2,6-dimethylphenylisocyanide complexes supported by fluorinated beta-diketiminate ligands and silver(I)-IMes (IMes = 1,3-dimesitylimidazol-2-ylidene) supported by an unfluorinated beta-diketiminate ligand were determined by X-ray crystallography.
590 $a School code: 0087.
650 4 $a Chemistry, Inorganic. $3 517253
650 4 $a Chemistry, Organic. $3 516206
690 $a 0488
690 $a 0490
710 2 $a University of Houston. $3 1019266
773 0 $t Dissertation Abstracts International $g 68-12B.
790 $a 0087
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3294920