Synthesis
The general procedure for the synthesis of p-methoxycyclohexanol from p-hydroxyanisole was as follows: 400 g of 4-methoxyphenol was dissolved in 450 mL of methanol and 40 g of 5 wt% palladium-carbon catalyst was added. The reaction system was pressurized to 7 MPa under hydrogen atmosphere and stirred at 140 °C for 5 hours. Upon completion of the reaction, the catalyst was removed by filtration and the filtrate was subjected to distillation under reduced pressure to recover the solvent. The final p-methoxycyclohexanol was obtained with a purity of about 97% and a yield of 98.5%.
References
[1] Tetrahedron Letters, 1994, vol. 35, # 39, p. 7151 - 7154
[2] New Journal of Chemistry, 2006, vol. 30, # 3, p. 447 - 457
[3] RSC Advances, 2014, vol. 4, # 6, p. 2729 - 2732
[4] Patent: CN108409547, 2018, A. Location in patent: Paragraph 0022; 0024; 0025; 0028; 0031; 0034
[5] Patent: WO2011/104338, 2011, A1. Location in patent: Page/Page column 49-50
