烷类

TM－200S coupling agent belongs to the chelant, as resisfance excellently soluble in organic solvents on the wrap, packing or directly in the solvent-based business card printing and membership card making ink, you can also use alkanolamide or danshinones amoebocyte to make it more active groups: properteries after it's been dissolved in the water, fill in the coating, or directly in the water-based ink.

TM－200S偶联剂属于螯合型，由于耐水性好，既可溶解在有机溶剂中对颜、填料进行包覆或直接在溶剂型制卡和会员卡制作油墨使用，也可用烷醇胺或胺类试剂使它多活性基团——季铵盐化后溶解在水中包覆颜、填料，或直接在水性油墨中使用。

Aim To study the synthesis and antidepressant activities of aryl alkanol piperazine derivatives.

目的 研究芳烷醇哌嗪类化合物的合成及抗抑郁活性。

Based on the bioisosterism of malonate group with phosphate group, a series of barbiturate compounds and pyrazolidine-3, 5-dione compounds were designed and synthesized.

基于丙二酸是磷酸的生物电子等排体，我们设计了丙二酸的闭环结构的巴比妥酸及3，5-吡唑烷二酮类化合物。

The new methods to synthesize 6-hydroxy-3, 8-dioxabicyclo[3.2.1]octane, dihydrobenzofuran and benzofuran derivatives are described in this thesis.

本文主要论述了(5R)-6-羟基-3，8-二氧二环[3.2.1]辛烷，苯并二氢呋喃和苯并呋喃类衍生物的合成新方法。

Among 3 cultivars, B17 occupied the least green odor contents of aromatic constituents, such as 2-hexen-1-ol acetate, butanoic acid 3-hexenyl ester and butanoic acid 3-hexenyl ester, hut had the most fruity, flowery and woody odors such as β-Ionone, 1-nonanol, Acetic acid octyl ester, Methyl benzoate, Ethyl benzoate and theaspirane, which showed that B 17 was superior to the 2 other cultivars in aroma quality.

不同品种的杨桃果实中的所含的香气成分及含量不同，B17杨桃含乙酸－反－2-己烯酯、丁酸－反－2-己烯酯、丁酸－反－3-己烯酯等青香型酯类最低而含β-紫罗兰酮、1-壬醇、乙酸辛酯苯甲酸甲酯、苯甲酸乙酯、茶螺烷等花香型、果香型及木香型成分最高，因而其香气品质要优于B10和新加坡红肉种。

The 6- cyano-1, 1 (1, 3- dioxypropylidene)-7-(carbomethoxyl group- methyl - 5- oxo-Delt6 (8)- tetrahydrochysene indolizine and haloethane reacts with each other for ethylization with existence of alkali and organic solution with or without phase transversion catalyst, and produces mentioned product.

本发明在相转移催化剂或无相转移催化剂存在下，6-氰基-1，1-(1，3-亚丙二氧基)-7-(甲氧羰基-甲基-5-氧代-Δ6(8)-四氢中氮茚类化合物与卤代乙烷在碱和有机溶剂的存在下进行乙基化反应即得6-氰基-1，1-(1，3-亚丙二氧基)-7-1′-(烷氧羰基-丙基-5-氧代-Δ6(8)-四氢中氮茚类化合物。

Twenty compounds have been isolated and structure-elucidated, ten of which were new compounds including one new skeleton diterpene malloapeltin A, 5 cembrene-type diterpenes, two dolabradane-type diterpenoids, one triterpene ester malloapeltin B and one coumarinolignoid compound 5'-demethyl aquillochin.

其中有10个是新化合物，包括一个新骨架的二萜，五个枯烯类的二萜，两个罗柏烷型的二萜，一个三萜的对苯二甲酸酯和一个香豆素木脂体类化合物。

hexadecanoic acid,oleic acid and linoleic acid were the major constituents.

结论萝卜秦艽块根中挥发油的主要成分为烷烃类和有机酸及其酯类化合物，其中十六烷酸、油酸、亚油酸等成分含量较高。

Aging mechanism of wood-plastic composite was: light and heat break down the long molecular chains of wood flour and plastic; the free radicals reacted with the oxygen, which generated carbonyl groups, hydroperoxides and so on; the free radicals also had cross linking reaction, which generated alkoxy; Water destroyed the interface of wood flour and plastic, hydrolyzed ester additives, extracted the small molecule additives and degradation products; Microorganism degraded cellulose, semicellulose, lignin and ester additives; degradation product from different component accelerated the aging, which could be exampled by the fact that HCl from degradation of PVC accelerated the hydrolyzation of cellulose and semicellulose.

木塑复合材料的老化机理为：光和热引发木塑复合材料中木质组分和塑料组分大分子链断裂，产生的自由基与氧气作用，发生链支化反应生成羰基、氢过氧化物等，发生交联反应生成烷氧基等；水分破坏木-塑界面、水解酯类添加剂、抽提小分子添加剂和降解产物；微生物分解纤维素、半纤维素、木素和酯类添加剂；木塑复合材料中各组分的降解产物相互促进老化，PVC降解产生的HCl溶于水，促进了纤维素和半纤维素的水解。

The pyrrole, oxazoles, pyridinones, quinolines, dibenzodiazepines, tetrahydrobenzoxazines and tetronic acids have been prepared from enaminones.

吡咯、唑烷、嘧啶酮、喹啉、二苯并二氮杂环类、四氢苯并噁嗪酮和特窗酸等都可以由烯胺酮类化合物制得。

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。