HCID 21877314, compound → HCID 21877392, compound

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2-Methyl-4[2-(trimethyl-silanyl)ethoxymethoxy]-phenyl-boronic acid was prepared in 52% yield from [2-(4-bromo-3-methyl-phenoxymethoxy)-ethyl]-trimethyl-silane according to the procedure for 5-methoxy-2-methyl 4[2-(trimethyl-silanyl)ethoxymethoxy]-phenyl-boronic acid above. 1H NMR (300 MHz, CDCl3) δ 8.15 (d, 1H, J=8.1 Hz), 6.98-6.92 (m, 2H), 5.29 (s, 2H), 3.78 (t, 2H, J=8.4 Hz), 2.78 (s, 3H), 0.98 (t, 2H, J=8.4 Hz), 0.01 (s, 9H). Anal. (C13H23BO4Si —H2O)C, H. Calculated: C, 59.10; H, 8.01. Found: C, 59.07; H, 8.08.

Provenance & Evidence