Estereosseletividade em reações eletródicas


Autoria(s): Azevedo,Dayse Caldas de; Goulart,Marília Oliveira Fonseca
Data(s)

01/04/1997

Resumo

This review discusses the present state of the art of the stereochemistry of electrochemical reactions. The extent of asymmetric induction is progressing, but in general diastereoselectivities and enantioselectivities remain behind those from chemical synthesis. In recent years, new methodological developments have been successful. Effects that play important roles in homogeneous chemistry have been used with success. Lack of expressive enantiomeric excess (ee) could be related to the absence of tightly organized structures during the reaction of interest. The highest ee might be expected for redox reactions where conformational preference in transition state plays the important role or for the ones performed while adsorbed on the electrode, and where the chiral element is also at the surface, either adsorbed or chemically bound to the surface and interacting directly with the substrate. Electroenzymatic synthesis has a promising future.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421997000200008

Idioma(s)

pt

Publicador

Sociedade Brasileira de Química

Fonte

Química Nova v.20 n.2 1997

Palavras-Chave #asymmetric electrosynthesis #chiral auxiliaries #chiral electrodes
Tipo

journal article