- Regio- and diastereo-controlled synthesis of bis(formylmethano)[60]fullerenes and their application to the formation of [60]fullerene pearl-necklace polyimines
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The tether-directed method was firstly applied to the biscyclopropanation of [60]fullerene via the addition-elimination reaction of bis(sulfonium ylide)s to give bis(formylmethano)[60]fullerenes with satisfactory regio- and stereoselectivity. The equatori
- Ito, Hiroshi,Ishida, Yasuhiro,Saigo, Kazuhiko
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p. 3095 - 3098
(2007/10/03)
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- Highly regioselective transformation of out/out-equatorial bis(formylmethano)[60]fullerenes: Construction of dissymmetric [60]fullerene-centered triads
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Three kinds of out/out-equatorial bis(formylmethano)[60]fullerenes (1b-d) were obtained by the tether-directed bifunctionalization of [60]fullerene with bis(α-formylsulfonium ylide)s. The condensation of aromatic amines with 1b-d proceeded with an unexpec
- Ito, Hiroshi,Ishida, Yasuhiro,Saigo, Kazuhiko
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p. 4759 - 4765
(2007/10/03)
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- A New General Synthesis of Polycyclic Aromatic Compounds Based on Enamine Chemistry
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Alkylation of enamines and enamine salts by benzylic and (β-haloethyl)aryl halides, respectively, followed by acidic cyclodehydration and dehydrogenation provides an efficient synthetic approach to a wide range of polycyclic aromatic compounds of diverse structural types.Specific polycyclic hydrocarbons synthesized by this route include benzo- and benzofluorene, 7H-dibenzo-, 13H-dibenzo-, and 13H-dibenzofluorene, 15H-tribenzofluorene, dibenzochrysene, benzopentaphene, indenofluorene, fluorenofluorene, octahydrodibenzanthracene, dibenzanthracene, octahydrodibenzanthracene, dibenzanthracene, picene, benzopicene, 1H-benzaceanthrylene, and 4H-cyclopentachrysene.This method with appropriate modifications appears to be potentially broader in scope than established traditional methods of polycyclic hydrocarbon synthesis.
- Harvey, Ronald G.,Pataki, John,Cortez, Cecilia,Raddo, Pasquale Di,Yang, ChengXi
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p. 1210 - 1217
(2007/10/02)
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