化合物

Photoluminescence spectra show that the emission peaks of compound 3 and 4 are at 612 nm and 630 nm, chrysoidine and red-emitting light, respectively.

光致发光光谱测试结果表明，化合物3的发光峰值为612 nm，橘红色光；化合物4的发光峰值为630 nm，发红色光。

And built herb standard of its root and seed,set up theory foundation for its Uygur clinical using . thirty two components have been gotten through systemic separating the root and seed of Cichorium glandulosum Boiss.et Huet.

对毛菊苣果实和根化学成分进行了较系统研究，共分离得到32个化合物，应用Sephadex LH-20等色谱分离方法，结合NMR、MS、IR等波谱技术鉴定了其中25个化合物。

"Since insolubility is the defining characteristic, cholesterol and related steroids, carotenoids, prostaglandins, and various other compounds are also classifiable as lipid s."

由于不溶性是决定性的特点，所以把胆固醇以及与之相关的类固醇、类胡萝卜素、前列腺素以及各种各样其它的化合物也归类于类脂化合物。

The compound HCB-01712-2 has been isolated from the broth of Claviceps HCB-01712,by the analyses of its physico-chemical properties,UV,ESI-MS and NMR spectra data,the structure of HCB-01712-2 has been identified as methyl vanillate.

从麦角菌(Claviceps sp。)HCB-01712的发酵液中分离纯化得到化合物HCB-01712-2，经理化分析、紫外吸收、质谱及核磁共振谱分析，确定该化合物为香草酸甲酯。

The chalcogenidometalates were characterized by elemental analysis, IR and X-ray crystallographic, and their thermal stability and optical properties were also investigated.

三、用元素分析、红外光谱、热重分析和单晶X射线衍射仪对合成的化合物进行了表征，测定了化合物的热稳定性和光学性质。

The condensation of aromatic aldehydes with active methylene compounds like malononitrile, cyanoacetamide and ethyl cyanoacetate has been found to proceed very efficiently at room temperature giving excellent yields, but the condensation of heteroaromatic,α,β-unsaturated and aliphatic aldehydes with active methylene compounds proceeded smoothly in 50~65℃ with good yields and the reactions of aromatic, aliphatic ketones as well as p-phthalaldehyde with malononitrile also proceeded in 75~85℃ with moderate yields.

芳香醛与活泼亚甲基化合物如丙二腈、氰基乙酸乙酯、氰基乙酰胺的缩合在室温下即能顺利进行，获得了很高的收率；而对于杂环芳醛、α，β-不饱和的醛以及脂肪醛与活泼亚甲基化合物的缩合，需在50~65℃下进行，也取得了很高的收率；对于脂肪酮、芳香酮以及二元醛与丙二腈的缩合在75~85℃下也能顺利地进行，获得中等以上的收率。

Two synthetic routes of Caffeine have been determined and investigated after the analyzing and trying for the literal synthetic methods. In one route, the target compound was prepared from chloroacetyl chloride through six steps, the total yield is 50.5 %. In another route, the target compound was obtained from cyanoacetic acid through six steps, the total yield is 45%.

对目前咖啡因工业生产工艺进行了研究，并分析了咖啡因工业生产中所存在的问题，本文提出两条可行的工业化合成路线：一条是以氯乙酰氯为起始原料，经过六步反应制得目标化合物，总收率50.5％；另一条是以氰基乙酸为起始原料经过六步反应制得目标化合物，总收率45％。

In Chapter two, a series of compounds incorporating amide andπ-conjugate moiety were designed, in which only cyclohexyl amide based diarylethenes were able to form stable organogelators.

第二章：设计一系列含酰氨、π共轭体系的二芳烯化合物，其中以环已二酰氨为母体的化合物在有机溶剂中能形成稳定的凝胶。

Methods: A cyclohexyl group introduced and a series title compounds synthesized All of them were confirmed by MS, 1H-NMR, et al. The antifungal activities were also evaluated against the eight common pathogenic fungi.

引入环己基侧链结构，合成一系列目标化合物，所有化合物结构均经MS、1H-NMR等谱确证；选择8种真菌为实验菌株，测定其体外抗真菌活性。

Methods The target compounds were synthesized from cyclopentanone via Stork reaction, Mannich reaction and selective reduction.

方法以环戊酮为起始原料，通过Stork烯胺反应、Mannich反应、选择性还原制备目标化合物；以二甲苯致小鼠耳肿胀模型测试目标化合物的抗炎活性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。