Synthesis and Characterization of Dialkyl-C61⁺

⁺Presented at Symposium on Expanded Horizons of Fullerene Science and Technology organized by L.Y. Chiang, E. Osawa, H. Terrones and M. Saunders at the IVth International Conference on Advanced Materials, Cancun, Mexico, August 27-September 1, 1995.

Abstract

Three-step synthesis from dialkyl ketone (R₂C=O) with C₆₀ gave C₆₀(CR₂)_n [R = Me, Et, Pr, Bu, (CH₂)₅.; n = 1, 2]. The adducts were isolated by means of gel permeation chromatography, and the monoadducts were characterized by ¹H and/or ¹³C NMR spectroscopies as a mixture of major [5, 6] and minor [6, 6] isomers. Their solubility and electrochemical properties were reported.

⁺Presented at Symposium on Expanded Horizons of Fullerene Science and Technology organized by L.Y. Chiang, E. Osawa, H. Terrones and M. Saunders at the IVth International Conference on Advanced Materials, Cancun, Mexico, August 27-September 1, 1995.

Notes

⁺Presented at Symposium on Expanded Horizons of Fullerene Science and Technology organized by L.Y. Chiang, E. Osawa, H. Terrones and M. Saunders at the IVth International Conference on Advanced Materials, Cancun, Mexico, August 27-September 1, 1995.

Very recently a similar in-situ trapping method has been reported on the preparation of alkyl-aryl-C₆₁. Hummelen, J. C., Knight, B. W., Lepeq, F., Wudl, F., Yao, J., Wilkins, C. L., J. Org. Chem., 1995, 60, 532.

We confirmed that similar synthesis from aromatic aldehydes ArCHO (Ar = p-Me₂NC₆H₄, 3, 4, 5–(MeO)₃C₆H₂, p-CH₃OCOC₆H₄, and p-O₂NC₆H₄) gave the corresponding adducts C₆₁HAr. See also ref. 11.