%0 Journal Article
%T Imidazolinium and amidinium salts as Lewis acid organocatalysts
%A Oksana Sereda
%A Nicole Clemens
%A Tatjana Heckel
%A Ren¨¦ Wilhelm
%J Beilstein Journal of Organic Chemistry
%D 2012
%I 
%R 10.3762/bjoc.8.205
%X The application of imidazolinium and amidinium salts as soft Lewis acid organocatalysts is described. These salts were suitable catalysts for the activation of unsaturated thioesters in a Diels¨CAlder reaction and in the ring opening of thiiranes and epoxides. The products were isolated in good yields. The mild catalysts did not cause desulfurization of the products containing a thiol or thiocarbonyl group.
%K Diels¨CAlder
%K ionic liquids
%K organocatalysis
%K soft Lewis acids
%K thiiranes
%K thioesters
%U http://dx.doi.org/10.3762/bjoc.8.205