An effective system to synthesize methanofullerenes: substrate-ionic liquid-ultrasonic irradiation |
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Authors: | Zhu YinghuaiChing Chibun Keith CarpenterNarayan S Hosmane John A Maguire |
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Institution: | a Institute of Chemical and Engineering Sciences, Block 28, #02-08, Ayer Rajah Crescent, Singapore 139959 b Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, IL 60115, USA c Department of Chemistry, Southern Methodist University, Dallas, TX 75275, USA |
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Abstract: | Dehalogenation of the polyhalides, CHCl3, C60(CCl2), CH2I2, and 7,7-dibromobicyclo(4,1,0)heptane, by treatment with zinc, magnesium or NaOH powder, followed by the in situ reaction with fullerene in the presence of ultrasonic irradiation and in the ionic liquid solvents, bmim]PF4] or omim]BF4], provided 6,6]-junction cycloaddition products in 53-79% yields. Only single isomers of the products were detected in the reaction solutions. |
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