- PALLADIUM ASSISTED N-METHYL ACTIVATION OF p-SUBSTITUTED N,N-DIMETHYLANILINES
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Intermediates in reaction of N,N-dimethylanilines with palladium(II) acetate were trapped by acetate ion or oxygen to give N-methyloxygenated and demethylated products, while the trapping by other anilines gave homo- and cross-coupling cyclodimers.The reactions proceed via radical cation formation induced by the palladium salt.
- Sakakibara, Tsutomu,Hamakawa, Tomoko
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p. 1823 - 1824
(2007/10/02)
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- OXIDATIVE CYCLODIMERIZATION OF N,N-DIMETHYLANILINES. A NOVEL CARBON-CARBON BOND FORMATION BY PALLADIUM(II) ACETATE
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The reaction of N,N-dimethylanilines p-susbstituted by electrondonating groups with palladium(II) acetate in a mixed solvent of benzene and acetic acid gave cyclodimerized products, i.e. 5,6,11,12-tetrahydrodibenzodiazocine derivatives in good yields, via novel C-C bond formation, along with small amount of acetoxylated or demethylated products.Radical cation species was suggested as a cyclodimerization intermediate.
- Sakakibara, Tsutomu,Matsuyama, Haruhiko
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p. 1331 - 1334
(2007/10/02)
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