Abstract：
:A facile one-pot two-stage photochemical synthesis of aromatic azoxy compounds and imines has been developed by coupling the selective reduction of nitroaromatic compounds with the selective oxidation of amines in an aqueous solution. In the first stage (light illumination, Ar atmosphere), the light excited nitroaromatic molecule abstract H from amine to form ArNO2H and amine radical, which then form nitrosoaromatic, hydroxylamine and imine compounds. Water acts as a green solvent for the dispersion of the reactants and facilitates the formation of nitrosoaromatic and hydroxylamine intermediate compounds. In the second stage (no light, air atmosphere), the condensation of nitrosoaromatic and hydroxylamine compounds yields aromatic azoxy product with the aid of molecular oxygen in air. This photochemical synthesis achieved both high conversion and high product selectivity (>99%) at room temperature.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Tan H,Liu X,Su J,Wang Y,Gu X,Yang D,Waclawik ER,Zhu H,Zheng Zdoi
10.1038/s41598-018-38100-6subject
Has Abstractpub_date
2019-02-04 00:00:00pages
1280issue
1issn
2045-2322pii
10.1038/s41598-018-38100-6journal_volume
9pub_type
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