(4-Methoxy-2-methylphenyl)boronic acid → 3,3,5,5-Tetramethylcyclohex-1-en-1-yl triflate

Beteiligte Stoffe

Reaktionsschritte

Trifluoro-methanesulfonic acid 3,3,5,5-tetramethyl-cyclohex-1-enyl ester was prepared in accordance with the procedures of Hanack et. al., J. Heterocyclic Chem. 1988, 25, pp 1237-1241. 4-Methoxy-2-methyl-1-(3,3,5,5-tetramethyl-cyclohex-1-enyl)-benzene was prepared in two steps by a Suzuki coupling of 4-methoxy-2-methyl-phenylboronic acid and trifluoro-methanesulfonic acid 3,3,5,5-tetramethyl-cyclohex-1-enyl ester following the procedures of Carmen et. al., Synlett 2005, No. 10, pp 1601-1605, to obtain 4-methoxy-2-methyl-1-(3,3,5,5-tetramethyl-cyclohex-1-enyl)-benzene, which was subsequently hydrogenated to form 1-cyclohexyl-4-methoxy-2-methyl-benzene.

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