“…When we used Pd/Al 2 O 3 instead of Pd/C, the reaction gave alcohol 4 in a 92% yield along with a trace amount of pristane 3 ( Table 1 , entry 2). These results strongly suggest that the Pd/C catalyst has an exceptional ability to reduce an allyl alcohol moiety to pristane 3 , which was consistent with results reported by other groups [ 10 , 11 , 12 , 13 , 14 , 15 ]. Under harsh conditions that included higher temperature (90 °C) and higher pressure (10 atm), the yield of 4 was increased, but that of 3 did not change ( Table 1 , entry 3).…”