Issue 12, 2014

Stereoselectivity through a network of non-classical CH weak interactions: a prospective study of a bicyclic organocatalytic scaffold

Abstract

A prospective novel organocatalyst scaffold has been investigated by computational studies for its potential to induce stereoselective reactions. Density functional theory calculations (DFT) of an organocatalysed Diels–Alder reaction between cinnamaldehyde and cyclopentadiene, show that it is possible to induce selectivity by placing appropriate chemical groups on the scaffold. In the present case small substituents with strong electronic effects are found to be more effective in controlling the stereochemical induction than sterically bulky substituents. We show, using noncovalent interaction analysis (NCI plots), that the CF3 group is especially efficient in improving the stereochemical control as well as increasing the reaction rate.

Graphical abstract: Stereoselectivity through a network of non-classical CH weak interactions: a prospective study of a bicyclic organocatalytic scaffold

Supplementary files

Article information

Article type
Paper
Submitted
28 Aug 2014
Accepted
25 Sep 2014
First published
26 Sep 2014
This article is Open Access
Creative Commons BY license

New J. Chem., 2014,38, 5975-5982

Author version available

Stereoselectivity through a network of non-classical CH weak interactions: a prospective study of a bicyclic organocatalytic scaffold

J. H. Aasheim, H. Fliegl, E. Uggerud, T. Bonge-Hansen and O. Eisenstein, New J. Chem., 2014, 38, 5975 DOI: 10.1039/C4NJ01460J

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