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The results of bioassay suggest that 2-methylthio-6-methyl-4-substituted pyrimidine and 4, 6-dimethoxy-2-substituted pyrimidine derivatives show herbicidal activity. In these target compounds, 4, 6-dimethoxy-2-substituted pyrimidine benzylamine and 4, 6-dimethoxy-2-Substituted pyrimidine benzylidene amine exhibit good herbicidal activity, and the herbicidal will be affected by the substituents in the benzene ring.

对分子库中的目标分子进行了生物活性筛选研究,发现其中的2-甲硫基-6-甲基-4-取代嘧啶衍生物和4,6-二甲氧基-2-取代嘧啶类化合物显示出除草活性,其中4,6-二甲氧基-2-取代嘧啶苄胺类化合物和4,6-二甲氧基-2-取代嘧啶亚苄胺类化合物具有较好的除草活性,而且其活性和苯环上的取代基有关。

The epoxidised cashew nut shell oil acrylate oligomer for UV curing materials was synthe- sized using epoxidised cashew nut shell oil and acrylic acid as main raw materials,N,N-dimethyl- benzylamine as catalyst and p-hydroxyanisole as inhibitor.

以N,N-二甲基苄胺作催化剂、对羟基苯甲醚作阻聚剂,环氧化腰果壳油和丙烯酸为主要原料合成了一种新型的紫外光固化预聚物——环氧化腰果壳油丙烯酸酯。

In this dissertation, synthesis of benzylidene[1,3-bis(2,6-dimethylphenyl)-4,5-dihydroimidazol-2-ylidene]dichlororuthenium (41) has been improved.

本论文首先改进了钌卡宾配合物[1,3-二-(2,6-甲苯基)-4,5-二氢咪唑基]-苯亚甲基-三苯基膦-二氯合钌(41)的合成方法。

Title compounds were synthesized by condensation of 3 benzylidene isochroman 4 one with 5 substituted 4 amino 3 mercap to 4 1,2,4 triazoles.

通过异色满酮-4的3-位苯亚甲基取代衍生物与4-氨基-3-巯基-1,2,4-三唑的缩合反应得异色满并[3,4-f]硫氮杂奥。

Five types of compounds were synthesized via modification of the leading compounds, Mannich bases of cyclopentanones. Among the target compounds, one type was aromatic amine derivatives of a leading compound, three were Mannich bases of a - benzylidene cyclopentanone, the fifth was a Mannich base of a - benzyl cyclopentanone.

以具有抗炎活性的环戊酮Mannich碱为先导化合物进行结构改造,设计合成了一类已知化合物的芳胺Mannich碱衍生物,三类α-苯亚甲基环戊酮Mannich碱类化合物,一类α-苄基环戊酮Mannich碱类化合物。22个目标化合物的结构经核磁共振氢谱、红外光谱和质谱检测确证。

Furthermore, benzoic acid, p-toluic acid and p-phthalic acid were transformed slowly in sediment slurries amended with BESA (20 mM) under the condition of 100% CO2 and H2/CO2 (20/80), respectively, and the sediment slurry was dominated by methanogene bacteria.

在底泥含有甲烷菌抑制剂及上层气体分别为100% CO2和H2/CO2 (20ml/80ml)时,苯甲酸、对位甲基苯甲酸及对位苯二酸之分解变慢,且此底泥菌群是以甲烷菌为主要优势菌。

Starting from p-hydroxybenzaldehyde, isovanillin (3-hydroxy-4-methoxybenzaldehyde) was synthesized by three-step reactions of bromination,methylation and hydrolysis.

以对羟基苯甲醛为原料,经溴代、甲基化和水解3步反应合成了异香兰素,改进并优化了合成路线。

The main products are: phosphorous trichloride 300,000 tons / year, phosphorus oxychloride 100,000 tons / year, phosphorus pentachloride 50,000 tons / year, 10,000 tons trichloroisocyanuric parathion / year chloromethyl ether 5000 tons / year, triethyl phosphite 10,000 tons / year, triphenyl phosphite 5000 tons / year, three phosphoric acid ethyl butoxy 2000 tons / year.

主要产品有:三氯化磷30万吨/年、三氯氧磷10万吨/年、五氯化磷5万吨/年、三氯硫磷1万吨/年、氯甲基甲醚5000吨/年、磷酸三乙酯10000吨/年、磷酸三苯酯5000吨/年、磷酸三丁氧基乙酯2000吨/年。

They were acetic acid, benzaldehyde, n caproic acid, methyl pentadecanoic methyl ester, glycerin, benzoic acid,,9 octadecadienoic methyl ester, squalane, stearic acid and oleic eicosyl ester.

它们是乙酸、苯甲醛、正葵酸、-甲基十五烷酸甲酯、丙三醇、苯甲酸、,9-十八碳二烯酸甲酯、角鲨烷、硬脂酸和二十烷基油酸酯。

Ingredients: Water,Hamamelis Virginiana Water,Glycerin,Propylene Glycol,Glyceryl Polymethacrylate,Betaine,Aloe Barbadensis Leaf Juice,Hydro-lyzed Wheat Protein,Sodium Pca,Tocopheryl Acetate,Polysorbate 20,Creatine,Hyaluronic Acid,Tetrasodium Edta,Perfume,Phenoxyethanol,Caprylyl Glycol,Sorbic.

成分:去离子水,金缕梅蒸馏液,甘油,丙二醇,甘油聚甲基丙烯酸酯,甜菜碱,芦荟叶提取物,水解小麦蛋白,吡咯烷酮羧酸钠,生育酚乙酸酯,聚山梨醇酯-20,肌酸,透明质酸,乙二胺四乙酸四钠,香精,苯氧乙醇,辛二醇,山梨酸。

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Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在,所有的孩子都要在综合学校继续学习,所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地,使人们普遍认识到发展不能以牺牲农业为代价。

Detailed Intrinsic Reaction Coordination calculations were carried out to guarantee the optimized transition-state structures being connected to the related tautomers.

同时,做了详尽的内禀反应坐标计算,以保证所得到的过渡态连接相应的始末异构体。