CH CHal So HI CH OH CH.COOH (a) H,o 0 CH3 (d 由甲醇（碘甲烷）合成乙酸的催化循环Monsanto反应) CH3I+CO→CH,COI CH:COI+H2O->CHCOOH+HI由甲醇(碘甲烷)合成乙酸的催化循环(Monsanto反应) CH3 I +CO ⎯→ CH3COI CH3COI +H2O ⎯→CH3COOH+HI