首先测定了17种取代苯化合物对发光菌的急性毒性,初步探讨了苯环上不同取代基类型和取代位置对毒性的影响。
The acute toxicities of 17 substituted benzenes to Photobacterium Phosphoreum were measured, and the effects of substituted groups and positions on toxicities were discussed roughly.
测定了27种取代苯类化合物在松花江江水中的生物降解性。
The biodegradability of 27 substituted benzenes in the Songhua river water by BOD technique.
三种n-氯乙酰取代的苯并含氮杂环化合物通过硫醚键的形成被导入嘧啶结构。
Three types of N? chloroacetyl substituted nitrogen? containing benzoheterocycles were introduced into pyrimidine by the formation of thioether.
结果表明,对邻苯二甲酸酯类化合物而言,取代基的空间结构参数是影响受试物好氧生物降解性能的重要因素。
The result showed that the steric factors of substituents were important parameters affecting the aerobic biodegradability of the tested compounds.
一种含吲哚类取代基的苯并呋喃酮类化合物的制造方法。
The invention discloses a preparation method of a benzofuran ketones compound containing indoles substituent groups.
由于冠醚上引入苯甲酰胺取代基,因而对苯胺类及不经衍生化的碱性化合物能特殊选择性地分离。
Excellent selectivity was obtained for the separations of polar position isomers. The benzamide substituent group on crown ether makes the stationa…
最后研究了4位芳香基取代1H-2,3-苯并恶嗪结构化合物的重排反应。
The rearrangement of 4-aryl 1H-2,3-benzoxazine derivatives was investigated.
最后研究了4位芳香基取代1H-2,3-苯并恶嗪结构化合物的重排反应。
The rearrangement of 4-aryl 1H-2,3-benzoxazine derivatives was investigated.
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