Faujasite catalysis of aromatic nitrations with dinitrogen pentoxide. The effect of aluminium content on catalytic activity and regioselectivity. The nitration of pyrazole
RP Claridge, NL Lancaster, RW Millar…
文献索引：Claridge, Robert P.; Lancaster, N. Llewellyn; Millar, Ross W.; Moodie, Roy B.; Sandall, John P.B. Journal of the Chemical Society. Perkin Transactions 2, 2001 , # 2 p. 197 - 200
The reaction of 1-chloro-2-nitrobenzene with dinitrogen pentoxide in dichloromethane catalysed by H-faujasite zeolites F-712, F-720, F-780 and F-901, giving 1-chloro-2, 4-dinitro- and 1-chloro-2, 6-dinitrobenzene in approximately 30∶ 1 ratio, is a kinetically first-order process. First-order rate constants are independent of the concentration of N2O5 and proportional to the mass of catalyst used. Specific rate constants, obtained by dividing the ...
