1996
DOI: 10.1002/jlac.199619961118
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Cycloaddition of Functionalized Nitrile Oxides and Fulminic Acid to [60]Fullerene

Abstract: Cycloaddition of nitrile oxides to [60]fullerene led to [60]fullereno[1,2‐d]isoxazole derivatives 1b–d. [60]Fullereno[1,2‐d]isoxazole (1a) is the corresponding cycloadduct with fulminic acid. X‐ray structure analyses of compound 1b and 1e were determined.

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Cited by 33 publications
(25 citation statements)
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“…Molecular structure of 2 in the crystal.make it easier to follow the discussion of the results, the numbering of the atoms mentioned is given in Figure 2. The distance between C1 ± C2 at the addition site (1.611 (2) ) is significantly larger than in the isoxazolo[60]fullerenes [1.584(5) , [9] 1.576(3) , [10] 1.564(4) , [10] 1.580(4) [13] ]. Evidently, the short repulsive 1,4 contact C61´´´O1 [2.609(3) ] of the eclipsed substituents is responsible for the bond lengthening.…”
mentioning
confidence: 99%
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“…Molecular structure of 2 in the crystal.make it easier to follow the discussion of the results, the numbering of the atoms mentioned is given in Figure 2. The distance between C1 ± C2 at the addition site (1.611 (2) ) is significantly larger than in the isoxazolo[60]fullerenes [1.584(5) , [9] 1.576(3) , [10] 1.564(4) , [10] 1.580(4) [13] ]. Evidently, the short repulsive 1,4 contact C61´´´O1 [2.609(3) ] of the eclipsed substituents is responsible for the bond lengthening.…”
mentioning
confidence: 99%
“…[8] Thus we were able to solve the structure of isoxazolo[60]fullerenes, which were synthesized by the addition of nitrile oxides to C 60 . [9,10] In the anthryl derivative [9] the average [11] bond lengths of the [6,6] and [5,6] bonds are 1.391(9) and 1.452(9) , respectively. As C 60 is a highly strained, polycyclic ring system, [3] bent bonds are to be expected.…”
mentioning
confidence: 99%
“…Kürzlich berichteten Grubbs et al über neutrale und kationische Ru II -Carbene mit Tp-Liganden (Tp Tris(pyrazolyl)borat), die aber keine katalytische Aktivität aufweisen. [9] Auf der Grundlage früherer Erfahrungen [10] mit Bis(di-tert-butylphosphanyl)methan (dtbpm) tBu 2 PCH 2 PtBu 2 [11] als Ligand gelang uns vor kurzem mit 2 a die Synthese des ersten Grubbs-Typ-Carbenkomplexes mit fixierter cis-Anordnung von Phosphanliganden. [12] Wir berichten hier über Herstellung, Struktur und Eigenschaften einer neuen Klasse von kationischen Ru II -Carbenkomplexen, [13] die hochaktive ROMP-Katalysatoren sind.…”
unclassified
“…[8] So konnten wir die Struktur von Isoxazolo[60]fullerenen, die durch Addition von Nitriloxiden an C 60 synthetisiert wurden, aufklären. [9,10] Im Anthrylderivat [9] sind die [6,6]-und [5,6]-Bindungen im Mittel [11] 1.391(9) bzw. 1.452(9) lang.…”
unclassified
“…Dessen Umsetzung mit 3-(3,4,5-Trimethoxyphenyl)propionsäure führte zu dem neuen 1,2-Dihydro[60]fullerenderivat 2 (Schema 1), das aus Toluol als 1:1-Clathrat in der Raumgruppe P1 Å kristallisiert (Abbildung 1). Die durchschnittlichen Längen der [6,6] [9] 1.576(3) , [10] 1.564(4) , [10] 1.580(4) [13] ]. Der Grund dafür ist wohl in dem kurzen abstoûenden 1,4-Kontakt C61´´´O1 [2.609(3) ] der ekliptisch stehenden Substituenten zu suchen.…”
unclassified