- The Diels-Alder reactions of para-benzoquinone nitrogen-derivatives: An experimental and theoretical study
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An experimental and theoretical study of the comparative reactivity and selectivity of the Diels-Alder reactions of para-benzoquinones and three nitrogen derivatives have been performed. The mono-oximes derivatives do not react under the tested reaction conditions, whereas the tosylated mono-oximes react slowly. However, the mono N-tosyl imines show excellent reactivity, and superior to the parent parabenzoquinones. DFT calculations support these experimental results.
- Uliana, Marciana P.,Servilha, Bruno M.,Alexopoulos, Olga,De Oliveira, Kleber T.,Tormena, Cláudio F.,Ferreira, Marco A.B.,Brocksom, Timothy J.
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p. 6963 - 6973
(2015/11/09)
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- POLYHALOGENATED PROPENE BENZOQUINONE DIOXIME DERIVATIVES AND ITS USE AS PESTICIDES
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Novel dihalogenopropene derivatives of the formula (I) and of the formula (Ia), wherein A, A1, A2, G, Q, R1, R2, R3, R4, and X have the meaning provided in the description, Methods and intermediates for their production as well as their use for combattiin
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Page/Page column 63
(2008/06/13)
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- Agent containing quinonimine derivatives and used to colour keratin fibres, and associated method
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The invention relates to an agent for colouring fibres (A). Said agent is produced by mixing two constituents (A1) and (A2), and is characterised in that the constituent (A1) contains at least one quinonimine derivative of formula (I), and the constituent
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- Synthesis of Macarpine and its Cytotoxicity: Toward a Synthetic Route for 12-Alkoxybenzophenanthridine Alkaloids through Aromatic Nitrosation under Basic Condition
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Macarpine (1), a 2,3,7,8,10,12-hexaoxygenated benzophenanthridine alkaloid (O6 base), was effectively synthesized from sesamol methyl ether (7) through the newly developed aromatic nitrosation under basic condition.The tests for the cytotoxicity of 1 a
- Ishikawa, Tsutomu,Saito, Tatsuru,Ishii, Hisashi
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p. 8447 - 8458
(2007/10/02)
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