Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics
<p>Copper catalysts<br />Decomposition (Chemistry) -- Mathematical models<br />Metal complexes</p>
- Publication
Articles 1 - 2 of 2
Full-Text Articles in Entire DC Network
Metal Salt Catalyzed Carbenoids The Catalysts In Trialkyl Phosphite Copper (I) Complex Catalyzed Decomposition Of Diazo Compounds, Nguyen Van Thinh
Metal Salt Catalyzed Carbenoids The Catalysts In Trialkyl Phosphite Copper (I) Complex Catalyzed Decomposition Of Diazo Compounds, Nguyen Van Thinh
Masters Theses
"Partial rate data, asymmetric induction studies, interrupted experiments and additives studies indicate that copper(I) salt-phosphite complexes are destroyed during the course of reactions with dimethyl diazomalonate (1) and ethyl diazoacetate (2). All evidence is consistent with the copper(I) being oxidized to copper(II) and copper(0) being oxidized by impurities in the olefin which most probably are hydroperoxides.
Several new copper(I) salt-phosphite complexes were prepared and examined but none proved as effective for decomposing (1) as copper(II) bis acetylacetonate.
The utility of the copper (I) chloride-trimethyl phosphite complex for decomposing (1) is a function of the means of preparation. The three general …
Metal Salt Catalyzed Carbenoids Ii, Robert Stephen Mcdaniel Jr.
Metal Salt Catalyzed Carbenoids Ii, Robert Stephen Mcdaniel Jr.
Doctoral Dissertations
"The interaction of diazomalonic esters with olefins in the presence of homogeneous Cu(II) catalyst species has been examined relating to olefin structure effects and catalyst structure effects using partial rate data as a method of determining the mechanistic aspects of the various reactions.
It has been possible to examine the mechanistic details of cyclopropanation, C-H insertion, and both "dimer" forming reactions.
Cyclopropanation proceeds via a transition state including olefin, copper (II), ligands, and carbene C-H insertion results from hydrogen abstraction prior to collapse of the transition state. "Dimer" is formed by the attack of diazo compound on the carbenoid carbon, …