Tetrahydrofuran → 1-Trichlorosilylpyrene

Participants

Reaction Conditions

Reaction Steps

Under a dry nitrogen atmosphere, n-BuLi (10.6 mL, 1.6 M) in hexanes was added drop-wise to a cooled (−60° C.) solution of 1-bromopyrene (5.01 g, 0.018 mol) in THF/Et2O (1:1) (80 mL) and stirred for 2 hours at −60° C. The solution was cooled to −90° C. and a THF solution of SiCl4 (8.66 g, 0.051 mol) (10 mL) was added slowly and stirred for 24 hours at room temperature. The reaction mixture was evaporated to dryness, washed in Et2O (100 mL), and filtered to remove any unreacted 1-bromopyrene and LiBr. The filtrate was collected and evaporated to dryness to give a 48% yield of 1-trichlorosilylpyrene, a yellow powder. 1HNMR (CDCl3, ppm) 8.66 (d, J=9.3 Hz, 1H), 8.59 (d, J=8.1 Hz, 1H), 8.30 (m, 5H), 8.11 (m, 2H). 13C {1H}NMR (CDCl3, ppm) 136.18 (C), 135.85 (C), 133.13 (CH), 132.06 (C), 131.30 (C), 131.22 CH), 130.31 (CH), 127.96 (CH), 127.67 (CH), 127.61 (CH), 126.65 (CH), 125.61 (C), 125.01 (CH), and 124.39 (C). 29Si{1H} (CDCl3, ppm) −1.64 (s).

Provenance & Evidence