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用改进的Claisen-Schmidt缩合反应,以甲苯为助溶剂,在金属钠和催化量的甲醇存在下,醛和乙酸甲酯30℃反应生成相应的(E)-肉桂酸衍生物,8例收率63%～95%。溶剂价廉,反应条件温和。(E)-肉桂酸衍生物合成的改进@黄志红
An improved Claisen-Schmidt condensation reaction with toluene as a cosolvent reacted with aldehydes and methyl acetate at 30 ° C in the presence of sodium metal and a catalytic amount of methanol to give the corresponding (E) -cinnamic acid derivatives in 8 yield 63% ~ 95%. Solvent cheap, mild reaction conditions. (E) - Synthesis of Cinnamic Acid Derivatives @ Huang Zhihong