Table 3. Reaction of various substituted phenols and aniline derivatives ^a .

^aReaction conditions: 1 (0.2 mmol), 2 (0.24 mmol), Pd/C (7 mol%), sodium formate (6 equiv.) and toluene (0.8 mL) at 120 °C for 24 h under an argon atmosphere; isolated yield and the ratio of cis/trans isomers was determined by crude ¹H NMR analysis.

^bNaphthalen-1-ol was used as substrate.

^cNaphthalen-2-ol was used as substrate.

^dCatechol was used as substrate.

^eHydroquinone was used as substrate with 2 equiv. aniline.