Methyl cis-cinnamate was synthesized from ethyltrans-cinnamate by bromination, dehydrobromination, esterification and catalytic hydrogenation. Thetotal yield was 43. 7%.

• 反式肉桂酸乙酯经溴化、脱溴化氢、甲酯化和催化氢化合成了顺式肉桂酸甲醇。总收率为43．7%25。