药中间体G()的一种合成路线如图所示。
已知:①(
代表烃基);
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③
(1)A的名称为
(2)B→C的反应类型为
(3)E分子中含有手性碳个数为
(4)同时满足下列条件的A的同分异构体有
a.能发生银镜反应 b.与金属钠反应产生氢气
其中核磁共振氢谱显示四组峰,且峰面积之比为1∶1∶2∶6的结构简式为
(5)结合题目信息,以丙酮、
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同类型试题
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y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
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y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
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