S. Knjazhanski, G. Moreno, G. Cadenas
Feb 5, 1999
Citations
0
Influential Citations
12
Citations
Journal
Tetrahedron
Abstract
Abstract The reaction of 9-substituted trimethyltinfluorenes with TiCl4 in hexanes at −40°C leads to unstable fluorenyltitanium(IV) trichlorides which thermal radical decomposition gives quantitatively TiCl3 and corresponding bifluorenes: (C13H9)2 (3a), (9-EtC13H8)2 (3b) and (9-SiMe3C13H8)2 (3c). Crystals of 3c are monoclinic (space group P 21/n), a= 15.059 A , b= 10.254 A , c= 18.172 A , β= 109.20 deg. IIIc dissociates at 100°C to give two radicals which initiate effectively radical polymerizations of methyl methacrylate and styrene.