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Butler, Richard N. and Hanniffy, John M. and Stephens, John C. and Burke, Luke A. (2008) A Ceric Ammonium Nitrate N-Dearylation of N-p-Anisylazoles Applied to Pyrazole, Triazole, Tetrazole, and Pentazole Rings: Release of Parent Azoles. Generation of Unstable Pentazole, HN5/N5 -, in Solution. JOC - Journal of Organic Chemistry, 73 (4). pp. 1354-1364. ISSN 0022-3263
Butler, R. and Stephens, John C. and Burke, Luke A. (2003) 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) pentazole. Chemical Communications, 2003 (8). pp. 1016-1017. ISSN 1359-7345
Burke, Luke A. and Butler, Richard N. and Stephens, John C. (2001) Theoretical characterization of pentazole anion with metal counter ions. Calculated and experimental 15N shifts of aryldiazonium, -azide and -pentazole systems. Journal of the Chemical Society, Perkin Transactions 2, 2001 (9). pp. 1679-1684. ISSN 1472-779X