题目

How Americans Began to Eat Tomatoes        People have strange ideas about food．For example, the tomato is a kind of very delicious vegetable．It is one of useful plants that can be prepared in many ways．It has rich nutrition and vitamin in it．But in the 18th century, Americans never ate tomatoes．They grew them in their gardens because tomato plants are so pretty．But they thought the vegetable was poisonous（有毒的）．They called tomatoes “poison apples．”President Thomas Jefferson, however, knew that tomatoes were good to eat．He was a learned man．He had been to有机物A是一种广谱高效食品防腐剂，如图所示是A分子的球棍模型。回答下列问题：（1）写出A的分子式：　　　　；（2）A能够发生反应的类型有(填序号)：　　　　；①氧化反应　②加成反应 　③取代反应 　④消去反应（3）写出A与烧碱溶液反应的化学方程式：___________________；（4）下列是一些中草药中所含的有机物：其中互为同分异构体的是(填序号)____________；能与溴水反应的是(填序号)____________；（5）A的一种同分异构体B在一定条件下可转化为二氢异香豆素，写出B转化为二氢异香豆素的化学方程式：____________________________________________________；（6）A的另一种同分异构体C遇FeCl3溶液显紫色；1 mol C可与1 mol NaOH反应生成有机物D；D被Ag(NH3)2OH溶液氧化后经酸化得有机物E，E经消去、酯化两步反应可得香豆素。写出符合上述要求的一种C的结构简式：______________。