Intramolecular ene reaction of 1,6-fullerenynes: a new synthesis of allenes |
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Authors: | Altable Margarita Filippone Salvatore Martín-Domenech Angel Güell Mireia Solà Miquel Martín Nazario |
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Affiliation: | Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense, E-28040 Madrid, Spain. |
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Abstract: | [Structure: see text] Thermal treatment of 1,6-fullerenynes bearing an alkyl group on the terminal carbon of the alkyne moiety leads quantitatively to new allenes through a reaction mechanism involving an intramolecular ene process. This reaction outcome is in contrast to that recently found for free terminal alkynes which form cyclobutene derivatives through a [2+2] cyclization mechanism. |
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