Richard N. Butler

First generation of pentazole (HN5, pentazolic acid), the final azole, and a zinc pentazolate salt in solution: A new N-dearylation of 1-(p-methoxyphenyl) pyrazoles, a 2-(p-methoxyphenyl) tetrazole and application of the methodology to 1-(p-methoxyphenyl) pentazoleElectronic supplementary information (ESI) available: experimental details. See http://www.rsc.org/suppdata/cc/b3/b301491f/

Richard N. Butler, John C. Stephens, Luke A. Burke · Chemical Communications · 2003 · 109 citations

Natural Sciences, Chemistry, Medicinal Chemistry +7

A Ceric Ammonium Nitrate N-Dearylation of <i>N</i>-<i>p</i>-Anisylazoles Applied to Pyrazole, Triazole, Tetrazole, and Pentazole Rings:  Release of Parent Azoles. Generation of Unstable Pentazole, HN₅/N₅^-, in Solution

Richard N. Butler, John M. Hanniffy, John C. Stephens et al. · The Journal of Organic Chemistry · 2008 · 104 citations

Natural Sciences, Chemical Engineering, Chemistry +11

The Influence of Water on the Rates of 1,3-Dipolar Cycloaddition Reactions:  Trigger Points for Exponential Rate Increases in Water−Organic Solvent Mixtures. Water-Super versus Water-Normal Dipolarophiles

Richard N. Butler, William J. Cunningham, Anthony G. Coyne et al. · Journal of the American Chemical Society · 2004 · 86 citations

Natural Sciences, Chemistry, Catalysis +14

Water and Organic Synthesis: A Focus on the In-Water and On-Water Border. Reversal of the In-Water Breslow Hydrophobic Enhancement of the Normal <i>endo</i>-Effect on Crossing to On-Water Conditions for Huisgen Cycloadditions with Increasingly Insoluble Organic Liquid and Solid 2π-Dipolarophiles

Richard N. Butler, Anthony G. Coyne, William J. Cunningham et al. · The Journal of Organic Chemistry · 2013 · 57 citations

Natural Sciences, Chemistry, Organic Chemistry +13

Theoretical characterization of pentazole anion with metal counter ions. Calculated and experimental 15N shifts of aryldiazonium, -azide and -pentazole systems†

Luke A. Burke, Richard N. Butler, John C. Stephens · Journal of the Chemical Society Perkin Transactions 2 · 2001 · 55 citations

Natural Sciences, Chemistry, Computational Chemistry +16