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以水杨醛为原料 ,经氯甲基化、硝化、Sommelet反应及 Witting反应合成了几种取代水杨醛 ,对它们的合成方法进行了改进 ,使合成过程简化 ,收率提高
Salicylaldehyde was used as raw material to synthesize several substituted salicylaldehydes by chloromethylation, nitration, Sommelet reaction and Witting reaction, and their synthesis methods were improved to simplify the synthesis process and increase the yield