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The reductive amination of alicyclic 1,5,9-triketone—2,6-bis[(2-oxocyclohexyl)methyl]cyclohexanone—has been studied under Leuckart reaction conditions and in the presence of NaBH 3 CN. A mixture of diastereomers of quinolizidine structure (2,3,5,6-bistetramethylenehexahydrojulolidine) is obtained. The stereochemistry of seven isomers is determined by the study of their NMR spectra using 2D...
The alicyclic 1,5,9-triketone 2,6-bis[(2-oxocyclohexyl)methyl]cyclohexanone, its cyclic form, and the product of its dehydration have been studied under Leuckart reaction conditions, with ammonium acetate in acetic acid and with hydroxylamine. The composition of the melt of the cyclic form has been determined. The obtained polycyclic products of N-heterocyclization confirm the existence of intermediate...
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