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- W2015644188 abstract "Abstract A study of the photochemical behaviour of three para-substituted anilines with low photoreactivity has been carried out. The photoproducts formed via irradiation at λ > 300 nm of solutions of 4-aminobenzylidene camphor (ABC) diisobutyl 4-aminobenzal malonate (BMA) and 2-ethylhexyl-4-aminobenzoate (PAB) in methanol under aerated conditions have been identified. In methanol the direct irreversible phototransformation quantum yields are very low ((3–10)×10 −5 ). The three compounds have a similar photochemical behaviour leading to the formation of photoproducts with absorption spectra very similar to the spectra of the initial compounds. In an acidic environment or in an aqueous solution a very fast back reaction occurred. NMR, IR and mass spectroscopy were used to characterize the unsubstituted Schiff bases that were formed. These photoproducts can also be obtained indirectly from the irradiation of diacetyl with a quantum yield of (1–4)×10 −2 . It can be proposed that the first step of the direct photochemical process is the formation of an aminyl radical." @default.
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- W2015644188 date "1995-03-01" @default.
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- W2015644188 title "Photochemical study of para-substituted anilines" @default.
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- W2015644188 doi "https://doi.org/10.1016/1010-6030(94)03978-4" @default.
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