Citation:
GUO Kai, ZHANG Shu-Yuan, HE Ke-Ke, ZHENG Shi-Jun, ZHANG Teng, YAN Tao, LI Zi-Fa. Synthesis and Characterization of Diaminodibenzo-14-crown-4[J]. Chinese Journal of Applied Chemistry,
;2002, 19(4): 329-333.
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Cis-and trans dinitrodibenzo-14-crown-4 were synthesized via nitration of dibenzo-14-crown-4(DB14C4D) synthesized by a modified Pedersen method. Cis-and trans-diaminodibenzo-14-crown-4 (cis-DAmDB14C4 and trans-DAmDB14C4) were obtained by reduction of NO2 group using Pd/C catalyst. All the compounds were characterized by NMR, IR and elemental analysis. The stereo structures of the cis-and trans-diaminodibenzo-14-crown-4 in DMSO have been investigated by 1H NMR, 13C NMR and computer simulation.
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