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- By Using cyclopentadiene and carbon=carbon bond compounds as raw materials,based on Diels-Alder reaction,norbornene derivatives were prepared,such as 5-phenyl-2-nobornene,5-cyano-2-nobornene,5-carboxyl-2-nobornene and 5-nobornene-2-hydroxybutyrate. 本文研究了以环戊二烯和其它含有碳碳双键的化合物为原料,通过Diels-Alder反应,合成了降冰片烯类化合物:5-苯基-2-降冰片烯、5-腈基-2-降冰片烯、5-羧基-2-降冰片烯。
- Norbornene derivative 降冰片烯类单体
- An organic derivative, such as coal or petroleum. 有机衍生物一种有机衍生物，如煤或石油
- An acyl derivative of hydrazine. 酰肼一种由肼衍生而来的酰
- A mark used as a superscript to indicate the first derivative of a variable. 撇号置于右上角的符号，用以标明变量的第一个导数
- The derivative of the step is the impulse. 阶梯的导数就是脉冲。
- A derivative is defined by a limiting process. 导数是通过一个极限过程加以规定的。
- They spoke a derivative of the Malay language. 他们说一种从马来语派生的语言。
- A highly derivative prose style. 毫无创意的散文风格
- A derivative word;a derivative process. 衍生词；推导过程
- Not standing alone;derivative or dependent. 从属的，不独立的不独立存在的；衍生性的或依赖性的
- An amino - acid derivative of galactose. 半乳糖胺半乳糖的一种氨基酸衍生物
- Derivative that is thrown if the wait times out. 派生类,它在等待超时后即被抛出。
- Derivative works are far more complicated. 派生作品更加复杂。
- The Derivative of a Map between Vector Spaces. 向量空间之间映射的微分。
- Say that the derivative financial instruments. 再说说衍生金融工具。
- Not standing alone; derivative or dependent. 从属的，不独立的不独立存在的；衍生性的或依赖性的
- METHODS By derivative flame atom absorption method. 方法:采用导数火焰原子吸收法。
- His paintings are really quite derivative. 他的画实在没有创意。
- Derivative plant products through fermentation. 植物经?酵等衍生产品。
