6-nitro-2,3-dipiperidinoquinoxaline: Its unexpected formation from 2-chloro-7-nitroquinozaline.
作者:J. Nasielski、C. Rypens
DOI:10.1016/s0040-4039(00)79653-5
日期:1991.3
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.
乙醚中过量的哌啶和2-氯-7-硝基喹喔啉1产生大量意外的分解产物6-硝基-2,3-二哌啶基喹喔啉3。氢这种非常不寻常的亲核取代的机理被认为涉及二哌啶子基-二氢喹喔啉10被溶解的氧氧化。