我国湖南、广西等地盛产的山苍子油中柠檬醛含量很高，质量分数可达到60%﹣90%，柠檬醛也可以利用异戊二烯为原料人工合成，柠檬醛又可用来合成紫罗兰酮等香精香料，其合成路线如图：已知：①②③同一碳原子连有

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我国湖南、广西等地盛产的山苍子油中柠檬醛含量很高，质量分数可达到60%﹣90%，柠檬醛也可以利用异戊二烯为原料人工合成，柠檬醛又可用来合成紫罗兰酮等香精香料，其合成路线如图：

已知：①

②

③同一碳原子连有两个双键结构不稳定．

试根据上述转化关系回答下列问题：

（1）写出A的结构简式　____ 　，C的结构简式　____ 　．

（2）①对应的反应条件是____ ，反应③的反应类型是____ ．

（3）写出B转化为柠檬醛的化学方程式　____ 　．

（4）根据反应②的反应机理写出CH₃CHO与足量的HCHO反应产物的结构简式：　____ 　．

（5）检验柠檬醛中含有碳碳双键的实验方法是：____．

（6）α﹣紫罗兰酮、β﹣紫罗兰酮有很多同分异构体，则满足下列条件的同分异构体有____ 种．

①含有一个苯环 ②属于醇类且不能发生催化氧化反应

③核磁共振氢谱显示有5个峰．

上一题下一题 0.0难度选择题更新时间:2017-11-13 12:24:35

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,,NaOH\u7684\u6c34\u6eb6\u6db2\uff0c\u52a0\u70ed,\u6d88\u53bb\u53cd\u5e94,,,\u5411\u76db\u6709\u5c11\u91cf\u6eb4\u7684CCl₄\u6eb6\u6db2\u7684\u8bd5\u7ba1\u4e2d\u6ef4\u52a0\u67e0\u6aac\u919b\uff0c\u8fb9\u6ef4\u8fb9\u632f\u8361\uff0

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阅读下面短文，并用英语回答问题（请注意每小题后面的词数要求）

My town is a great place to live in. It's the best place to enjoy your free time. There are three movie theaters in the town. They are all good, but the one nearest my house is the best. Shopping is also easy. There are many shops and most of them are trendy. They sell very fashionable clothes. They are also cheaper than those in other cities, so students love to shop here. There are also a lot of video and music stores. These are very popular with students. I go to the music store every week to buy a new CD. The most crowded place for students to hang out is the park. Everyone goes there, so it's really interesting.

Sometimes there are even street performers. Some students think they are boring, but I think they are the most creative people. I want to be a street performer, too.

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