查询词典 benzothiazole

It is shown that as the third eomponent of the catalyst di-methylaniline is the best,tetramethylthiuram disulfide or triethylamine the next.and benzothiazole the worst.

结果指出，作为催化剂第三组分以二甲基苯胺的效果最好。催化体系中存在与磷酸相等克分子的水时催化活性较高。

The studies are significant to propose the synthetic methodology of benzothiazole derivatives,broaden the application of the metal complexes of benzothiazoles.It is practical value of the research in preparation of phenylacetic acid from metal-catalyized carbonylation.The thesis consists of four chapters.

本论文研究了苯并噻唑衍生物及其钴、铑金属配合物的合成，并研究了两类金属配合物的羰基化催化性能，提供了合成苯并噻唑衍生物的可行路线，拓宽了苯并噻唑金属配合物的应用范围，催化羰基化合成苯乙酸的研究具有重要的实用价值。

Two key compounds butenonitrile and benzothiazole were found.

GC-MS检测解析结果为雪里蕻腌菜的挥发性成分主要为烃、醇、酯、腈及含硫和氮的杂环化合物，其中丁烯腈及苯并噻唑与雪里蕻腌菜的特征风味有关。

The plants of muskmelon were sprayed with benzothiazole at 100mg/L for 1, 2, 3 and 4 times at 1 week before flowering, young fruit period, fruit enlarging period arid netting period, respectively. Some parameters of resistance were analyzed afterone week of treatment.

分别于甜瓜开花前1周、幼果期（花后2周）、果实迅速膨大期（花后3周）和网纹形成期（花后4周）用100mg/L BTH对甜瓜植株进行1、2、3、4次喷洒，并分别在幼果期、膨大期、网纹期和成熟期进行取样，分析BTH处理后果实体内3种防御性酶活性和抗性物质的变化。

Different e--donors and e--acceptors are incorporated at the phenyl ring of the benzothiazole to decipher the relationship between basicity of nitrogen atom and thermochromic phenomenon.

我们并且合成出其他不同的电子与体及电子受体的香豆素衍生物，来说明取代基的立体效应与电子效应对整个热致变色现象的影响。

Keywords dye;fibre;blend;aniline;benzothiazole;spectrum

染料；纤维；混纺；苯胺；苯骈噻唑；光谱

Given the success of 9-aminocamptothecin and meanwhile to investigate the impact of substituents with electron-donating groups on the activity of these compounds, amino group was incorporated into the 7-position of benzimidazole, benzoxazole or benzothiazole.

将第Ⅲ类化合物中的喹诺酮环用其电子等排体色酮环代替，得到第Ⅲ类化物，以考察喹诺酮的氮原子被氧原子取代后对活性的影响，该类化合物包括9个化合物，其中含4个色酮开环产物。

The ultraviolet-visible absorption spectra, optical constants (complex refractive index N=n+ik) of the thin films and thermal characterizations of three kinds of novel nickel-azo dyes based on 4-methylthiazole, benzothiazole and 6-methylbenzothiazole were investigated.

分别对三种以 4 甲基噻唑、苯并噻唑和 6 甲基苯并噻唑作为重氮组份，以 3 二乙氨基苯酚作为偶合组份的偶氮染料的镍螯合物的光谱、热学性质和薄膜的光学常数(复折射率N =n+ik)及光存储性能进行了研究。

Replacement of one benzimidazole fragment with benzothiazole or benzoxazole and optimization of the structure to create the new frame of the compounds were also carried out with the exception to find more potent compounds. The purpose of design and synthesis of these compounds is to investigate the QSAR of this class of compounds with the inhibition of HCV NS3/NS4A protease and eventually to develop more potent inhibitors.

本文首次采用了丙二酰胺与邻芳二胺在微波辐射下制备对称性双芳并唑甲烷化合物、用芳并唑-2-乙酸乙酯与邻芳二胺在微波辐射下制备非对称性双芳并唑甲烷化合物、用4-取代噻唑-2-乙酸乙酯与邻芳二胺在微波辐射下制备非对称性(4-取代-噻唑-2-基)(1H-芳并咪唑-2-基)甲烷化合物等合成路线，共合成了48个目标化合物，其中41个为新化合物，用~1HNMR，ESI-MS，FT-IR，元素分析对这些化合物进行了全面表征，确定了这些化合物的结构，并对部分化合物进行了~(13)CNMR分析。

The narrow band gap comonomer 2,1,3-benzothiadiazole acts as a powerful exciton trap which allows efficient energy transfer of the exciton from fluorene segment to benzothiazole unit in the copolymers.

其中，低能级的共聚单体2，1，3—苯噻唑在体系中充当激子陷阱，芴单元受激发而产生的激子会通过链内或链间能量转移的方式传递到苯噻唑单元。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。