Joshua V. Ruppel

Cobalt-Catalyzed Asymmetric Cyclopropanation of Electron-Deficient Olefins

Ying Chen, Joshua V. Ruppel, X. Peter Zhang · Journal of the American Chemical Society · 2007 · 232 citations

Chemical Engineering, Engineering, Cobalt-catalyzed Asymmetric Cyclopropanation +10

Cobalt-Catalyzed Asymmetric Cyclopropanation with Diazosulfones: Rigidification and Polarization of Ligand Chiral Environment via Hydrogen Bonding and Cyclization

Shifa Zhu, Joshua V. Ruppel, Hongjian Lu et al. · Journal of the American Chemical Society · 2008 · 198 citations

Highly Asymmetric Intramolecular Cyclopropanation of Acceptor-Substituted Diazoacetates by Co(II)-Based Metalloradical Catalysis: Iterative Approach for Development of New-Generation Catalysts

Xue Xu, Hongjian Lu, Joshua V. Ruppel et al. · Journal of the American Chemical Society · 2011 · 197 citations

Engineering, Organic Chemistry, Chemistry +18

Cobalt-Catalyzed Intramolecular C−H Amination with Arylsulfonyl Azides

Joshua V. Ruppel, Rajesh M. Kamble, X. Peter Zhang · Organic Letters · 2007 · 186 citations

Chemical Engineering, Engineering, Organometallic Catalysis +7

A Highly Effective Cobalt Catalyst for Olefin Aziridination with Azides: Hydrogen Bonding Guided Catalyst Design

Joshua V. Ruppel, Jess E. Jones, Chelsea A. Huff et al. · Organic Letters · 2008 · 168 citations

Materials Science, Inorganic Chemistry, Chemical Engineering +15