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以 (R) (+ ) 香茅醇为原料 ,经溴化甲氧基化、消除、酸诱导环合三步反应合成了氧化玫瑰 ,三步总收率为 75 6 %。所得氧化玫瑰顺反异构体比例为 70 30～ 75 2 5 ,可用于配制高级玫瑰香精。
The oxidized rose was synthesized by (R) (+) citronellol as raw material, brominated methoxylation, elimination and acid induced cyclization. The total yield was 75.6% in three steps. The resulting rose rose cis-trans isomer ratio of 70 30 ~ 75 2 5, can be used for the preparation of advanced rose essence.