In the past 8 years the Grotjahn lab has explored the scope of catalyst 1 (R = H) that turns a 1-alkene into (E)-alkenes, with very high selectivity.1 In the past two years we discovered that catalyst 1 (R = Me) that can turn a 1-alkene into a (E)-2-alkene, without making more than 1 or 3% 3-alkene or other isomers;2 in other words, 1 (R = Me) selectively moves the double bond only once. While the existing examples of 1 are very successful at (E)- and positionally selective isomerizations, we would like to expand our toolbox to achieve other selectivities; results of these studies will be reported here. References: 1. Grotjahn, D. B., Larsen, C., Gustafson, J., Nair, R., Sharma, A., Extensive Isomerization of Alkenes Using a Bifunctional Catalyst: An Alkene Zipper. J. Am. Chem. Soc. 2007, 129, 9592-9596. 2. Larsen, C., Erdogan, G., Grotjahn, D.B., General Catalyst Control of the Monoisomerization of 1-Alkenes to trans-2-Alkenes. J. Am. Chem. Soc. 2014, 136.

Effect of cyclopentadienyl ligands on alkene isomerization catalysts

251st National Meeting (2016)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.