A remarkably facile oxygen transfer in a nitrobenzofuroxan structure activated through σ-complex formation

Autor: François Terrier, J.-C. Cherton, Erwin Buncel, Martine Beaufour, J.‐C. Halle

Publikováno v: Tetrahedron Letters
Tetrahedron Letters, Elsevier, 2001, 42 (27), pp.4499-4501. ⟨10.1016/S0040-4039(01)00774-2⟩

International audience; Treatment of 4,6-dinitrobenzofuroxan (DNBF) with the imidazoline 1-NRf is found to afford a zwitterionic nitrogen-bonded complex (2-NRf±) which, in the presence of base (Et3N), undergoes a slow but quantitative transformation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c15dcb2c45039fafd331a30a493db070
https://doi.org/10.1016/s0040-4039(01)00774-2

ChemInform Abstract: 4,6-Dinitrobenzofuroxan: A Stronger Electrophile than the p- Nitrobenzenediazonium and H+ Cations

Autor: François Terrier, Elyane Kizilian, J.‐C. Halle, Erwin Buncel

Publikováno v: ChemInform. 23

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::61e99509fd30539996ea710b3e1f4aa2
https://doi.org/10.1002/chin.199226168

High Brønsted beta nuc values in SNAr displacement. An indicator of the SET pathway?

Autor: Malika Mokhtari, J.‐C. Halle, François Terrier, Erwin Buncel, Régis Goumont

Publikováno v: Organicbiomolecular chemistry. 1(10)

Nucleophilic substitutions of 4-chloro-7-nitrobenzofurazan (NBD-Cl) and 3-methyl-1-(4-nitrobenzofurazanyl)-imidazolium ions (NBD-Im+) with a series of 4-X-substituted anilines have been kinetically investigated in 70-30 (v/v) and 20-80 (v/v) H2O-Me2S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd1709432e19e4375ba44015d9de5605
https://pubmed.ncbi.nlm.nih.gov/12926366

Dual Behavior of 4-Aza-6-nitrobenzofuroxan. A Powerful Electrophile in Hydration and σ-Complex Formation and a Potential Dienophile or Heterodiene in Diels−Alder Type Reactions

Autor: Muriel Sebban, Gilles Moutiers, J.‐C. Halle, Régis Goumont, François Terrier, I. Cangelosi, Erwin Buncel

Publikováno v: Journal of Organic Chemistry
Journal of Organic Chemistry, American Chemical Society, 2000, 65 (22), pp.7391-7398. ⟨10.1021/jo0005114⟩
Journal of Organic Chemistry, 2000, 65 (22), pp.7391-7398. ⟨10.1021/jo0005114⟩

In investigating the reactivities of aza analogues of super-electrophile 4,6-dinitrobenzofuroxan (DNBF, 1), we have found that the nitro-substituted pyridofuroxan 2 gives a remarkably stable hydrate 3 in aqueous solution (as evidenced by the requirem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34eb51ceb9259539bcac4f8d75ebe2e1
https://hal-normandie-univ.archives-ouvertes.fr/hal-02546273

Nucleophilic displacement of hydrogen in 4,6-dinitro--benzofuroxan and -benzofupazan. Synthesis of some novel 7-substituted 4,6-dinitro-benzofuroxans and -benzofurazans

Autor: Marie-Paule Simonnin, François Terrier, J.‐C. Halle, Marie-José Pouet

Publikováno v: Tetrahedron Letters. 26:1307-1310

Formal hydride ion displacement readily occurs in 4,6-dinitro-benzofuroxan and -benzofurazan. This process provides a simple two-step synthesis of some new 7-substituted-4,6 dinitro derivatives.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e8be17099ba8f86e34cf4059b136ed59
https://doi.org/10.1016/s0040-4039(00)94878-0