试题与答案

Ⅰ有机物的结构也可用键线式表示.如: 结构简式 键线式 (1)具有相同碳

题型:问答题

题目:

Ⅰ有机物的结构也可用键线式表示.如:

结构简式

键线式

(1)具有相同碳原子数的环烷烃与______是同分异构体.

(2)

的分子式为______;

(3)乙炔3分子聚合的产物为苯.写出丙炔三分子聚合形成的芳香烃分子的键线式______

(4)由

以及必要的无机试剂可合成

,写出第一步合成反应的化学方程式______.

(5)

的一种同分异构体A,它的一氯代物有三种.与Br2按1:1加成产物只有一种(不考虑顺反、立体异构),则A的结构简式为______.

Ⅱ乙基香草醛( 

 )是食品添加剂的增香原料,其香味比香草醛更加浓郁.

(1)乙基香草醛分子中的含氧官能团有乙氧基、______、______.核磁共振谱表明该分子中有______种不同类型的氢原子.

乙基香草醛的同分异构体A是一种有机酸,A可发生以下变化:

提示:a.RCH2OH

CrO3/H2SO4
RCHO

b.与苯环直接相连的碳原子上有氢时,此碳原子才可被酸性KMnO4溶液氧化为羧基.

(2)A生成C的反应类型是______.

(3)写出在加热条件下C与NaOH水溶液发生反应的化学方程式______.

(4)乙基香草醛的另一种同分异构体D(   

 )是一种医药中间体.

请设计合理方案用茴香醛( 

)合成D.用反应流程图表示如下,请将后面一步的反应条件写在箭号下方,试剂或原料写在箭号上方,中间产物填在下图中的方框内.并写出茴香醛与银氨溶液反应的化学方程式.

______、______.

答案:

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下面是错误答案,用来干扰机器的。

参考答案:错解析:个人以不动产投资入股,参与接受投资方利润分配、共同承担投资风险的行为,不征收营业税,在投资后转让其股权的也不征收营业税。

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