烷类

AIM:To assess the antioxidative activity of a new cyclic diaryheptanoid (compound 1) from ginger on free radical damage. METHODS:Hemolysis, MDA levels of mice liver tissue homogenates, the conformation changes of irradiated PUC18 were used as indices.

目的和方法：采用溶血实验，小鼠肝组织脂质过氧化物测定，采用受辐射质粒构象改变等方法测定从生姜中分离得到的一新的环状二苯基庚烷类化合物(化合物1)的抗氧自由基损伤活性。

Results: The ultrasound extraction used ethyl ether superior to other methods of 5,identified 36 elements,containing the main esters,carbon-and second-category,at least acetylene category.

结果：乙醚超声萃取的前处理方法明显优于其他5种方法，鉴定出36种成分，主要为酯类，碳烯及烷类次之。

In this paper we reported the results of 4 antimony cyclic-mercaptides and 2 corresponding tincompounds and 1 organomercury compounds,3 stibonic acids and related compounds,4 bis(p-aminophenoxy)- thiaalkanes,4 EDTA-chelates of antimony,tin,mercury and bismuth,"TWSb", hexachloroethane,tetrachloroethylene and some other antimony,tin and mercury compounds.

本文报告32种有机化合物对于日本血吸虫病的动物实验治疗的结果，包括：二硫锑环状化合物4种及其相应的 Sn 化合物2种及 Hg 化合物1种、酸类3种、双硫间烷类化合物4种、EDTA 与 Sb，Sn，Hg 及 Bi4种螯合盐、"TWSb"、CCl_3—CCl_3、CCl_2=CCl_2以及一些其他 Sb，Sn 及 Hg 的衍生物。

Seven derivatives of 1,3- dithiocyclohexane were prepared via the reaction o f 7 aldehydes with Bunte′s salt prepared from 1,3-dichloroprop ane and sodium thiosulfate.

国内外关于 1， 3 二硫环己烷类化合物的合成已有大量报道 [5~8]，但反应条件较苛刻，一般都在-18~78℃之间，而且一种方法只能合成一种物质。

The configuration of cyclic diarylheptanoids is very interesting for their macrocycle in stereochemistry.

环状二苯基庚烷类化合物具有篮状的空间结构，在自然界中比较少见，结构独特。

Emphasis: Aminolysis method of hydroxyl on alcohol, addition amination of epoxy alkyl, aminolysis of aliphatics haloid.

重点：醇羟基的氨解、环氧烷类的加成胺化、脂族卤素衍生物的氨解。

At present, since fluorobenzene liquid crystal and cyclohexyl crystal are very popular liquid crystals. some research have done on the synthesis of the intermediate, fluorophenol and alkylcyclohexylbenzene compounds in this thesis.

本论文的主要内容分为两部分：第一部分，针对目前液晶材料研究的热点：含氟液晶和环己烷类液晶，就其液晶材料中间体氟代苯酚和烷基环己基苯类化合物的合成进行研究。

The new reaction of disubstituted phosphinosilane would be available in many organic syntheses.

这类新型反应为二取代膦基硅烷类化合物的研究开辟了新方向。

A new synthesis method of Taxane s was reported involving radicals generated from hypophosphorous acidn initiated by 2,2′-azobisisobutyronitrile.

由偶氮二异丁腈引发次磷酸产生次磷酸根自由基，以链式自由基反应机制脱除紫杉烷类化合物结构中的含氧基团，简单、高效地合成了紫杉烷。

A new synthesis method of Taxanes was reported involving radicals generated from hypophosphorous acid n initiated by 2,2′-azobisisobutyronitrile.

由偶氮二异丁腈引发次磷酸产生次磷酸根自由基，以链式自由基反应机制脱除紫杉烷类化合物结构中的含氧基团，简单、高效地合成了紫杉烷。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。