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解有机合成题可以根据所要合成的物质,采用顺推、逆推、齐推的思维方法。(此法亦适用于有机推断)为了合成方案能符合经济,环保的原则,我们一般应遵循如下法则:1线路短;2条件简;3成本低;4转化率高(副产物少或无)。但是有机合成中有时会遇到这样的情况,本意是只想对某个官能团进行处理,结果却影响了其他官能团。这时我们通常可以采用如下两种方法对需要的官能团进行保护。其一曰“暗渡陈仓”法——即先将所需要的官能团隐蔽
Solutions of organic synthesis solution can be based on the substance to be synthesized, using the push, reverse push, push the thinking method. (This method also applies to organic reasoning.) In order to meet the economic and environmental principles of synthesis, we generally follow the following rules: 1 short circuit; 2 simple conditions; 3 low cost; 4 high conversion rate (byproduct less or no) . However, organic synthesis sometimes encountered such a situation, the original intention is to just deal with a functional group, the result has affected the other functional groups. At this point we can usually use the following two methods to protect the functional groups needed. One said “dark crossed the coffin ” method - that is, the first required functional groups hidden