纵观近几年的高考试题,选做题中的有机框图题总以新面孔展现旧知识,这类题目往往借助于框图推断,考查有机合成过程中的反应类型、物质中的官能团名称以及化学方程式等基础知识。重点是分析挖掘信息,利用已知的知识去推断未知的物质是有机推断题设计目的,站在有机化学试题的解析方法角度来看,完美地解答有机合成题,只需要处理好以下几个问题即可。(I)正确选择有机合成的路线和途径有机合成往往需要经过多步反应才能达到目的,因此只有合 Throughout the entrance exam questions in recent years, the topics of organic frame selection in the essay are always showing the old knowledge with new faces. These topics are often inferred from the block diagram to examine the types of reactions in organic synthesis, the names of functional groups in substances, Equation and other basic knowledge. The key point is to analyze the mining information and use the known knowledge to infer the unknown material is the purpose of the organic inference. From the perspective of the analytical method of the organic chemistry, the perfect solution to the organic synthesis is to deal with the following problems Can be. (I) Correct choice of organic synthesis routes and ways Organic synthesis often requires a multi-step reaction to achieve the goal, so only