目的：探讨丹参二萜醌对邻苯三酚自氧化反应产生的氧自由基的作用。
Object: to observe the oxygen derived free radicals scavenging of diterpenoid tanshinones by pyrogallol autoxidation systems.
变温荧光光谱观察双分子膜中蒽醌生色基的荧光光谱强度和峰位极敏感地受到双分子膜物理状态变化的影响。
Both the fluorescence intensity and the peak location of anthraquinone chromophore are sensitively affected by the change in the bilayer physical state.
在DMF-四乙基溴化铵（TEAB）质子惰性介质中，马蔺子素连续两步单电子还原生成相应氢醌阴离子，无中间体半醌自由基的化学反应发生。
In DMF tetraethyl ammonium bromide(TEAB) media, the reduction of irisquinone was two successive single electron processes without the chemical reaction of the free radical semiquinone.
结果表明，预处理过程中愈创木基易于磺化和溶出，木素中有新的共轭羰基和醌型结构产生。
The results showed that during the chemical pretreatment the guaiacyl unit was more readily to be sulfonated and dissolved, and there were new conjugated carbonyl and quinoid structure formed.
以叔戊苯和笨酐为原料，通过酰基化和关环合成了2—戊基蒽醌，改进和优化了各步合成工艺条件，酰化收率80.2％，关环产品收率81.4％。
An improved and optimum process for preparing 2-Amylanthraquinone by re-acting t-amylbenzene with phthalic anhydride, involving Friedel-Crafts acylation (yield 80. 2%) and cyclization(yield 81.4%).
本发明提供了一类具有式ii结构的1,4 -萘醌类化合物，其取代基的定义如明所述。
The invention provides 1, 4-naphthoquinone compounds with a formula II, and the definition of substituents of the naphthoquinone compounds are described as the specification.
本发明提供了一类具有式ii结构的1,4 -萘醌类化合物，其取代基的定义如明所述。
The invention provides 1, 4-naphthoquinone compounds with a formula II, and the definition of substituents of the naphthoquinone compounds are described as the specification.
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