par Nasielski, Jacques 
;Rypens, C.
Référence Tetrahedron letters, 32, 10, page (1311-1314)
Publication Publié, 1991-03
;Rypens, C.Référence Tetrahedron letters, 32, 10, page (1311-1314)
Publication Publié, 1991-03
Article révisé par les pairs
| Résumé : | Excess piperidine and 2-chloro-7-nitroquinoxaline 1 in diethyl ether give large amounts of the unexpected disubstitution product 6-nitro-2,3-di-piperidinoquinoxaline 3. The mechanism of this very unusual nucleophilic substitution of hydrogen is suggested to involve the oxidation of the dipiperidino-dihydroquinoxaline 10 by dissolved oxygen. © 1991. |
