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- W2000481470 abstract "trans,trans-1,3-Diphenyl-2-azaallyllithium (1) cycloaddiert sich bei O oder −70°C unter Retention an Acenaphthylen zu einem Gemisch von N-Lithio-syn- und N-Lithio-anti-7,9-diphenyl-7,8,9,9a-tetrahydro-6bH-acenaphtho[1,2-c]pyrrol (3a, 4a, R = Li) (ca. 1:1). Das syn-Isomere (endo-Cycloaddukt) lagert sich bei +35°C in das anti-Isomere (exo-Cycloaddukt) um. 1,3-Anionic Cycloadditions, XIII. endo-exo-Isomeric Cycloadducts of trans,trans-1,3-Diphenyl-2-azaallyllithium and Acenaphthylene trans,trans-1,3-Diphenyl-2-azaallyllithium adds at O or −70°C to acenaphthylene with retention of configuration to give a mixture of N-lithio-syn- and N-lithio-anti-7,9-diphenyl-7,8,9,9a-tetrahydro-6bH-acenaphtho[1,2-c]pyrrole (3a, 4a, R = Li) (ca. 1:1). The syn-isomer (endo-cycloadduct) rearranges to the anti-isomer (exo-cycloadduct) at +35°C." @default.
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- W2000481470 date "1977-02-01" @default.
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- W2000481470 title "1,3‐Anionische Cycloadditionen, XIII. <i>endo‐exo</i> ‐Isomere Cycloaddukte aus <i>trans</i> , <i>trans</i> ‐1,3‐Diphenyl‐2‐azaallyllithium und Acenaphthylen" @default.
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- W2000481470 doi "https://doi.org/10.1002/cber.19771100225" @default.
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