三烯

METHODS 3-methoxy-7α-methylestra-1,3,5(10)-trien-17β-ol was reducted with lithium and ammonia,then the intermediate was hydrolyzed in oxalic acid and reacted with malonic acid to get 3,3-dimethoxo-7α-methylestra-5(10)-en-17-ol(compound 4),which was oxidated by pyridium bichromate ,reacted with acetylene,and hydrolyzed in oxalic acid again to get the product tibolone.

方法以3-甲氧基-7α-甲基雌甾-1，3，5(10)-三烯-17β-羟基为起始原料经锂胺还原、草酸水解、缩酮化得3，3-二甲氧基-7α-甲基雌甾-5(10)-烯-17β-羟基(化合物4)，然后用温和的氧化剂重铬酸吡啶盐氧化、炔化、再水解得目的产物。

The results showed that the first canonical correlation coefficient between aldehydes, ketones, esters and the total quantity of each kind of ingredient and smoking quality achieved 5 % or 1 % remarkable level. And their correlation depended mainly in the correlation between phenylacetaldehyde, furfural, megastigmatrienone-1, megastigmatrienone-3, geranylacetone,β-damascenone, keto-isophorone, dihydroactinidiolide and smoking quality.

结果表明：醛类成分、酮类成分、酯类成分与香气质、香气量的第一典型相关系数达到5%或1%显著水平，各类成分总量与香气质、香气量的第一典型相关系数达到1%极显著水平，其相关关系主要表现在苯乙醛、糠醛、巨豆三烯酮1、巨豆三烯酮3、香叶基丙酮、β-大马酮、氧化异佛尔酮、二氢猕猴桃内酯等成分与香气质、香气量的相关上。

Using extensie MS, U, and NMR spectral analyses, the structure has been established as compound 1, aureoerticillactam, a 22-atom macrocyclic lactam incorporating both triene and tetraene conjugated olefins.

运用包括质谱、紫外及核磁共振的多种光谱分析，解析确定了该化合物1的结构，是一个含有共轭三烯和共轭四烯的22元环大环内酰胺。

Using extensive MS, UV, and NMR spectral analyses, the structure has been established as compound 1, aureoverticillactam, a 22-atom macrocyclic lactam incorporating both triene and tetraene conjugated olefins.

运用包括质谱、紫外及核磁共振的多种光谱分析，解析确定了该化合物1的结构，是一个含有共轭三烯和共轭四烯的22元环大环内酰胺。

The structures and configurations of other components weredetermined too.The results show that the structure of components ofChinese lacquer urushiol are the same as components of Japaneselacquer. In this work,2D-heteronuclear relayed coherence transferspectroscopy plays an important role in determining molecularskeleton carbon linkage.

研究结果表明，中国生漆漆酚中含量最大并起关键作用的两双键共轭的三烯漆酚的结构与构型与日本漆中的该组分完全相同，即都有末端甲基的3—十五碳烯烃（8′Z，11′E，13′Z）邻苯二酚，而没有末端双键的存在，其它几个漆酚主要组分的结构也与日本漆酚对应组分基本相同。

Leaves was 0.11%. 11 compounds were separated and identified, which accounted for 100% of the essential oil of the skins. The main chemical components of the essential oil were 3, 7, 11-trimethyl-, 1, 6, 10-Dodecatrien-3-ol (46.03%),-Globulol (8.39%), adipic acid, dioctyl ester (7.03%), Ledol (7.00%), Copaene (5.86%), etc. ConclusionThe essential oil of leaf of Horsfieldia hainanensis Merr.

结果水蒸气蒸馏提取物得率为0.11%，通过计算机检索、图谱分析鉴定出11个化合物，占总油量的100%，其主要成分为3，7，11-三甲基l-1，6，10-十二碳三烯-3-醇(46.03%)、-蓝桉醇(8.39%)、己二酸二辛酯(7.03%)、喇叭茶醇(7.00%)、胡椒烯(5.86%)等。

He fatty acid composition of grass carp was analyzed using GS-MS and more than 18 fatty acids were identified, including hexadecanoic acid, 9-hexadecenoic acid, 9-octadecenoic acid, 6,9-octadecadienoic acid, 9,12,15-octadecatrienoic acid, octadecanoic acid, 5,8,11,14-eicosatetraenoic acid, 4,7,10,13,16,19-docosahexaenoic acid, 5,8,11,14,17-eicosapentaenoic acid, pentadecanoic acid, heptadecanoic acid, and 5,8,11-heptadecatrienoic acid. There were some fatty acids with odd carbon atoms besides the fatty acids with even carbon atoms common in animals and plants.

P能改善蛋白质的乳化性和凝胶性。3、利用GC-MS对草鱼鱼肉中的脂肪酸进行分析，鉴定出草鱼中含有棕榈酸、十六碳烯酸、油酸、亚油酸、亚麻酸、硬脂酸、花生四烯酸、DHA、EPA、十五烷酸、十七烷酸、十七碳三烯酸等十八种以上脂肪酸，除含有动植物中常见的偶数碳脂肪酸外，还含有一定量的奇数碳脂肪酸。

At the same time, some of the pyrolysates are the important favors in cigarette smoke, such as isophorone and megastigmatrienone, etc. The amounts of these pyrolystaes alter with the change of pyrolysis temperatures and the concentration of oxygen. the lutein is applied to cigarettes as flavoring.

分析结果表明，叶黄素的裂解产物主要是甲苯和对-二甲苯等苯及其同系物、1，2–二氢-1，1，6-三甲基-萘和2，7-二甲基萘等萘及其同系物，另外还生成氧化异佛尔酮和巨豆三烯酮等酮类物质和烯烃类物质等，这些物质随着裂解温度和裂解氛围的变化，其种类和峰面积归一化百分含量有所不同。

Compared with pearled grain, whole grain has higher concentration of oil and tocol, showing that seed coat may be one of the major tissue accumulating oil and tocol.

大麦油的母育酚组成成分主要为α-生育酚（占总生育酚的65.4%）和α-生育三烯酚（占总生育三烯酚的70.7%）。

The content of tocopherols and toctrienols in rice bran oil and its deodorizer distillate were analyzed, and the unsaponifiable matters components in the deodorizer distillate were also studied.

对米糠油及其脱臭馏出物中生育酚及生育三烯酚含量进行检测分析，结果表明，米糠来源和米糠油精炼工艺对米糠油及其脱臭馏出物中α、β、γ、δ-生育酚和生育三烯酚的含量有显著影响。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。