4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenol → 3-Methyl-2-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenoxymethyl]-benzofuran

Beteiligte Stoffe

Reaktionsschritte

Alkylation of 2-chloromethyl-3-methyl-benzofuran with 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenol was carried out according to Example 136, Step 3, to give 3-methyl-2-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenoxymethyl]-benzofuran in 44% yield. 1H NMR (400 MHz, CDCl3) δ ppm 1.3 (s, 12 H) 2.3 (s, 3 H) 5.2 (s, 2 H) 7.0 (d, J=8.6 Hz, 2 H) 7.3 (m, 2 H) 7.5 (dd, J=21.6, 7.7 Hz, 2 H) 7.8 (d, J=8.8 Hz, 2 H).

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