Catalytic dehydrocoupling of thienyl/furyl-substituted carbosilanes – Synthesis and characterization of functional poly(hydrosilane)s [RMe2Si(CH2)xSiH]n, (R=2-Th, 4-Me-2-Th, 2-Fu, 5-Me-2-Fu; x=2 and 3)
作者:Ravi Shankar、Vandana Shahi
DOI:10.1016/j.jorganchem.2008.12.029
日期:2009.4
The carbosilanes RMe2Si(CH2)(x)SiH3, [R = 2-Th (1a, 2a), 4-Me-2-Th (3a, 4a), 2-Fu (5a, 6a), 5-Me-2-Fu (7a, 8a); x = 2 and 3], with primary SiH3 end groups undergo a facile dehydropolymerization under ambient conditions (50 degrees C, 48 h) in presence of Cp2TiCl2/2.2 n-BuLi catalyst to afford the corresponding poly(hydrosilane)s 1-8 bearing carbosilyl side chains appended with thienyl/furyl groups. These have been characterized by GPC, IR, multinuclear (H-1, C-13H-1}, Si-29H-1}) NMR, UV and PL spectral studies. (C) 2008 Elsevier B.V. All rights reserved.