Abstract：
:Starting from dansyl-chloride, in reaction with 1,1-diphenylhydrazine and methoxyamine, two new fluorescent derivatives 1 and 2 were obtained and characterized by NMR, IR, UV-Vis, HR-MS, and fluorescence spectroscopy. The single-crystal X-ray structure was obtained for compound 2. Both compounds generate free radicals by oxidation, as demonstrated by ESR spectroscopy. Compound 1 generates the corresponding hydrazyl-persistent free radical, evidenced directly by ESR spectroscopy, while compound 2 generates in the first instance the methoxyaminyl short-lived free radical, which decomposes rapidly with the formation of the methoxy radical, evidenced by the ESR spin-trapping technique. By oxidation of compounds 1 and 2, their fluorescence is quenched.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Patrascu B,Mocanu S,Coman A,Madalan AM,Popescu C,Paun A,Matache M,Ionita Pdoi
10.3390/ijms21103559subject
Has Abstractpub_date
2020-05-18 00:00:00issue
10issn
1422-0067pii
ijms21103559journal_volume
21pub_type
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