Photochemical functionalizations of C60 with phenylpolysilanes
摘要:
Photolyses of tert-butyl substituted disilanes 1a-1c, and 1i with C-60 result in the formation of 1,16-adduct 2 through silyl radical addition to fullerene. The unusual products, 3, 5, 6 and 7 where the silyl and phenyl groups attached on 1,2-positions of fullerene are also obtained from the reaction of 1d-g and 4. The structures of all these compounds were determined by one- and two-dimensional NMR techniques. (C) 1998 Elsevier Science S.A. All rights reserved.
Photochemical functionalizations of C60 with phenylpolysilanes
摘要:
Photolyses of tert-butyl substituted disilanes 1a-1c, and 1i with C-60 result in the formation of 1,16-adduct 2 through silyl radical addition to fullerene. The unusual products, 3, 5, 6 and 7 where the silyl and phenyl groups attached on 1,2-positions of fullerene are also obtained from the reaction of 1d-g and 4. The structures of all these compounds were determined by one- and two-dimensional NMR techniques. (C) 1998 Elsevier Science S.A. All rights reserved.
Substituents effects on the addition of silyllithium and germyllithium to C60
作者:Takahiro Kusukawa、Wataru Ando
DOI:10.1016/s0022-328x(98)00497-5
日期:1998.6
Mono-adducts 2 and di-adducts 3 are obtained by the reaction with silyllithium and germyllithium 1 with C-60. The selectivities of the products are controlled by electronic and steric effects of the substituents. Formations of 1,4-adduct 4 and dimer 5 can be obtained in the presence of biphenyl derivatives. (C) 1998 Elsevier Science S.A. All rights reserved.