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- sesquiterpene ketones 倍半萜酮类化合物
- Progress in studies on sesquiterpene lactones from Xanthium L. 苍耳属中倍半萜内酯的研究进展。
- Three novel dimeric sesquiterpene lactones from Ainsliaea macrocephala. Zhang Wei-dong(通讯作者);et al.
- These reactions are therefore used to discern between ketones and aldehydes. 这些化学反应因此被用来区分醛类和酮类。
- It is produced by the reduction of fuchsin by sulfurous acid, and is oxidized by aldehydes and ketones, restoring the magenta color of the fuchsin. 配法是用亚硫酸使品红溶液还原,若有醛酮类存在时便使之氧化而重新呈现品红本身的洋红色。
- It has exceptionally good weather aging and ozone resistance. It is fairly good in ketones and alcohols. 这种材料具有比较突出的抗自然老化和抗臭氧腐蚀的性能。对于甲酮和乙醇,这种材料也具有很好的抗腐蚀性能。
- Gossypol is a kind of sesquiterpene, which generally exist in the gossypol gland. 棉酚是一种存在于棉酚腺体的倍半萜烯类化合物。
- The results showed that sesquiterpene cyclase gene was induced to express by elicitation of CuCl2. 结果表明,Cu2+能诱导辣椒叶片表达倍半萜环化酶活性,酶活性的表达与相应的基因转录有关。
- Ketones are found in unusual amounts in the urine of diabetics and people suffering from faulty fat metabolism. 糖尿病患者的尿中丙酮量出现异常,并且患者脂肪代谢出现故障。
- The reaction of sulfate with aldehydes and ketones has been known for many years. 大家知道硫酸盐能与醛类和酮类反应已有许多年了。
- Survey in studies on chemical constituents of sesquiterpene and their physiological activities in plants of Helianthus L. 向日葵属植物倍半萜类化学成分及其生物活性研究概况。
- Artemisinin is a sesquiterpene lactone compound extracted from sweet wormwood Artemisia annua L,which contains the specific endoperoxide bridge. 青蒿素是从菊科植物黄花蒿叶中提取分离到的一种具有过氧桥结构的倍半萜内酯类化合物。
- REDOX Relationships amongst Alcohols, Aldehydes and Ketones and Carboxylic acids. 醇,醛与酮和羧酸之间的氧化还原关系。
- In aprotic solvents magnesium effects pinacol reductive coupling of aldehydes and ketones. 在非质子性溶剂,镁对频纳醇与醛和酮的还原耦合反应也有一定效果。
- Most antifeedant secondary plant compounds fall into one of four categories:sesquiterpene lactones,isoflavonoids,quassinoids,limonoids. 大部分植物源拒食性次生性化合物可以分为倍半萜烯内酯类、异黄酮类、苦木素类和柠檬苦素类化合物4大类。
- TerisAVanBeek,Paul Maas,BonnieMKing,et al.Bitter Sesquiterpene Lactonesfrom Chicory Roots[J].Agric Food Chem,1990,38:1035. 何轶;郭亚健;高云艳.;菊苣根化学成分研究[J]
- It included hydroxylic acids,hydrocarbons,alcohols,esters,aldehydes,ketones,aromatic compounds,and steroids,etc. 呈现有较高的隐性致死作用。
- Any of a group of compounds containing a CNOH group, formed by treating aldehydes or ketones with hydroxylamine. 肟任何一类含有CNOH组的合成物,主要由羟胺与醛或酮作用形成的
- Artemisinin is an endoperoxide of the sesquiterpene lactone.The structure of this compound is too complex to be synthesized effectively. 青蒿素是倍半萜烯的一种内过氧化物,这种物质由于其极复杂的结构,因此很难被有效合成。
- The development in the oxidation of olefins to ketones catalyzed by palladium compounds was reviewed. 本文系统地评述了钯配合物催化烯烃氧化合成酮类物质的研究进展。