1932
DOI: 10.1002/cber.19320650546
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Synthese des anti‐diperi ‐Dibenz‐coronens und dessen Abbau zum Coronen (Hexabenzo‐benzol). (Mitbearbeitet von Horst v. Hoeßle und Solon Brissimdji)

Abstract: Scholl, M e y e r : Synthese[Jahrg. 65und Petrolather umkrystallisiert. Ausbeute: 50 mg aus 600 mg Lycopin.Nach 2-maligem Umkrystallisieren zeigte das p-Nitrophenyl-hydrazon den in der Literatur') angegebenen Schmp. 103.5-1o4O (Berl, korr.). Der Misch-Schmp. mit einem aus Methyl-heptenon dargestellten Praparat ergab keine Depression. 3.878 mg Sbst.: 0.537 ccm N (xS0, 753 mm). Hentriakont an: Der nicht wasserdampf-fliichtige Riickstand der Benzin-Filtrate von der Lycopinal-Darstellung wurde mit heiSem Alkohol a… Show more

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Cited by 83 publications
(97 citation statements)
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“…Except in the central 6‐membered ring, coronene relates to the structure of coraannulenes, [18] which has a 5‐membered central ring and displays a bowl shape rather than planar shape. In 1932, the elegant Scholl and Meyer protocol [19] has given rise to a new class of angular acenes after annulating different number of benzenes around the coronene to provide planar, contorted, and other shapes of polyaromatics [11–13] . These PAHs expanded from coronene were more diversified in their syntheses and properties, which warrant a review.…”
Section: Introductionmentioning
confidence: 99%
“…Except in the central 6‐membered ring, coronene relates to the structure of coraannulenes, [18] which has a 5‐membered central ring and displays a bowl shape rather than planar shape. In 1932, the elegant Scholl and Meyer protocol [19] has given rise to a new class of angular acenes after annulating different number of benzenes around the coronene to provide planar, contorted, and other shapes of polyaromatics [11–13] . These PAHs expanded from coronene were more diversified in their syntheses and properties, which warrant a review.…”
Section: Introductionmentioning
confidence: 99%
“…[n]Circulene is the best candidatet oe xplain systematically the structural variation because it contains ac entral nsided polygon that is completely surrounded and fused by benzenoids. [1] Three members of the circulene family- [5]circulene (or corannulene), [2] [6]circulene (or coronene), [3] and [7]circulene (orp leiadannulene) [4] -have so far been prepared, and their structures have been identified conclusively. [ 5]Circulene and [7]circulene deviatef rom planarity as they form ab owl and as addle shape, respectively.A lthough studies of the parentc ompounds [4]circulene and[ 8]circulene remain theoretical, this geometric rule appliest ot he recently reported tetrabenzo[4]circulene (quadrannulene) [5] andt he per-substituted [8]circulene (1) [6] /tetrabenzo[8]circulene, [7] which exhibitb owland saddle-shaped structures, respectively.T etrabenzo[4]circu-lene is the most curveda romatic bowl with aP OAV( p-orbital axis vector) [8] pyramidalization angle of up to 178.…”
Section: Introductionmentioning
confidence: 99%
“…[n]Circulene is a macrocyclic arene in which a central n-sided polygon is completely surrounded and fused by benzenoids. [1] Only three members of this family, [5]circulene (or corannulene), [2] [6]circulene (or coronene), [3] and [7]circulene (or pleiadannulene) [4] have been prepared to date. The shapes of these circulenes change from a bowl ( [5]circulene) through a plane ( [6]circulene) to a saddle ( [7]circulene).…”
mentioning
confidence: 99%