Citation:
TAO Jian-Qin, SUN Chong, ZHANG Li-Min, FEI Zheng-Hao, GU Zhi-Guo. Mechanism for Preparation of Condensed Rings Compounds Containing Nitrogen Analyzed with HPLC and ESI-MS[J]. Chinese Journal of Applied Chemistry,
;2005, 22(11): 1234-1238.
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The interactions between phen-5,6-dione and ethyldiamine or cis-diaminomaleonitrile were studied via high performance liquid chromatography and electrospray ionization mass spectrometry respectively.The results show that the intermediate from the addition reaction between the carbonyl and amine groups formed first,it was further dehydrated to form the double bond.And if a conjugated system could be formed,the resulting intermediate would be dehydrogenated further into conjugated compounds of condensed rings.
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