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- W2067670009 abstract "Abstract Photolysis of trans-canadine N-oxide (3) leads to lactam 5 and formamide 7. Similarly, photolysis of trans-xylopinine N-oxide (12) supplies lactam 14 and amide 15. Oxaziridine 4 is a probable intermediate in these transformations, so that selective oxidation of the berbine nucleus at C-6 has been achieved, accompanied by fission of the N-7-C-14 bond. LAH reduction of lactam 5 gives rise to dibenzazecine 8, while similar treatment of amide 7 generates dibenzazonine 10. Alternatively, acid hydrolysis of 7 furnishes dibenzazonine 11." @default.
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- W2067670009 date "1980-01-01" @default.
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- W2067670009 title "The photolysis of berbine N-oxides" @default.
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- W2067670009 doi "https://doi.org/10.1016/s0040-4020(01)83116-1" @default.
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