Thirteen new compounds of the alkyl styryl indoline spirobenzopyrans were synthesized from the condensation of 2-methylene indoline with the designed salicylaldehyde.
利用2-亚甲基吲哚啉和取代水杨醛缩合得到十三种新
烷基
乙烯基吲哚啉螺
喃。
Thirteen new compounds of the alkyl styryl indoline spirobenzopyrans were synthesized from the condensation of 2-methylene indoline with the designed salicylaldehyde.
利用2-亚甲基吲哚啉和取代水杨醛缩合得到十三种新烷基乙烯基吲哚啉螺喃。
Through IR analysis, the main component in group II was identified as dialkyl-benzene, while in Group III was monoalkyl-benzene as well as dialkyl-tetralin and indane (DTI).
然后用紫外法求得了第Ⅱ族组分中邻、间二烷基之和与对二烷基质量比约为1∶409。
A process for decolourization of anionic dye containing wastewater by using waste plastics in the presence of cationic auxiliary and sodium dodecylbenzene sulfonate has been studied.
探讨了在阳离子助剂及十二烷基磺酸钠存在下,利用废
对阴离子染脱色工艺。
Two kinds of polymerizable liquid crystal compounds have been prepared successfully in the paper, one is tolan-type liquid crystal compound, another is a phenylcyclohexanethyl liquid crystal compound.
以碘代烷氧基与烷基乙炔为中间体,采用为催化剂偶联方法合成了二乙炔类液晶化合物。
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