1959
DOI: 10.1002/hlca.19590420704
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Zur Kenntnis des Coronens. 2. Mitteilung. Dien‐Anlagerungen in der Perylen‐ und Benzperylenreihe

Abstract: Maleinsaureanhydrid addiert sich bekanntlich an die 9,lO-Stellungen des Anthracens unter Bildung cines Adduktes, welches bei hijherer Temperatur wieder in die Edukte zerfallt. Bei der Anlagerung bildet sich ein Dihydro-anthracen-Dcrivat mit zwei voncinander getrenntcn Benzolkernen, wobei ein Verlust an Resonanzenergie stattfindet (vgl. Formelbild 1). Da aber zugleich zwei neue Kohlenstoff-Kohlenstoff-Bindungen entstehen, ist die Gesamtreaktion schwach cxotherm. Die Reaktionswarme ist ungefahr gleich: 4 E,-,-Z … Show more

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Cited by 23 publications
(16 citation statements)
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“…We reasoned that the synthesis of the required substituted perylene dinitriles could be achieved by a Diels–Alder reaction between a substituted perylene and suitable dienophile (Scheme ). A number of such Diels–Alder reactions on the parent perylene11, 12 itself and on dialkylperylenes13, 14 (using powerful dienophiles in this case) have been reported.…”
Section: Resultsmentioning
confidence: 92%
See 1 more Smart Citation
“…We reasoned that the synthesis of the required substituted perylene dinitriles could be achieved by a Diels–Alder reaction between a substituted perylene and suitable dienophile (Scheme ). A number of such Diels–Alder reactions on the parent perylene11, 12 itself and on dialkylperylenes13, 14 (using powerful dienophiles in this case) have been reported.…”
Section: Resultsmentioning
confidence: 92%
“…The Diels–Alder reaction of dimethylperylene 14 was initially attempted by using dimethylacetylene dicarboxylate (DMAD) as dienophile, reasoning that, if successful in this general approach, the esters could be converted to nitriles. Treatment of 14 with DMAD and chloranil (employed to oxidise the intermediate Diels–Alder adduct) in refluxing nitrobenzene11 afforded a mixture of addition products 17 and 18 in 45 % yield (ca. 3:1; Scheme ).…”
Section: Resultsmentioning
confidence: 99%
“…[14] Using these pathways, we synthesized new Cor derivatives Cor-(COOMe) 3 and Cor-(COOMe) 4 and Bp derivative Bp-COOMe (Scheme 3). The syntheses of Bp-(COOMe) 2 , [16] Cor-COOMe, [17] Cor-(COOMe) 2 [16] and Cor-(OMe) 2 [18] have already been reported.…”
Section: Synthesismentioning
confidence: 99%
“…Other compounds were synthesized according to reported methods. [16][17][18] Detailed 1 H NMR and MALDI-TOF mass spectral data are presented in the Supporting Information (Figures S1-S5).…”
Section: Synthesismentioning
confidence: 99%
“…Simplification of the procedure was achieved by the core-extension of the bayregion of PDI by means of a one-step Diels-Alder cycloaddition. [21] Recently, an effective route for the benzannulation of 2-halobiaryls, with in situ generation of arynes, was described. [22] This reaction was successfully applied for the synthesis of carbo-and heterocyclic polyaromatic molecules in good yields.…”
Section: Wwwchemeurjorgmentioning
confidence: 99%