查询词典 addition compound

Their chemical structures were characterizd on the basis of spectral and chemical evidences to be: Sarracenin (1), 2-methyl-5-hydroxy-7-O-ethyl caffeate chromome (2), Naringenin(3), 2-methyl-5, 7-dihydroxychromome (4), 2-methyl-6-hydroxyl-cinnamic acid methyl ester (5), eriodictyol (6), quercetin (7), Naringenin-7-O-β-D-glucoside( 8 ), eriodictyol-7-O-α-D-glucoside (9), quercetin-3-O-β-D-glucoside(10). In addition, one compound was abtained from the n-butanol frationk, which was finally identified as Morrosiside(11) by spectral and chemical evidences.

以波谱数据及其理化性质鉴定为：Sarracenin(1)，2-甲基-5-羟基-7-O-咖啡酸乙酯色原酮(2)，柚皮素(3)，2-甲基-5，7-二羟基色原酮(4)，2-甲基-6-羟基苯丙烯酸甲酯(5)，圣草酚(6)，槲皮素(7)，柚皮素-7-O-β-D-葡萄糖苷(Naringenin-7-O-β-D-glucoside)(8)，圣草酚-7-O-α-D-葡萄糖苷(eriodictyol-7-O-α-D-glucoside)(9)，槲皮素-3-O-β-D-葡萄糖苷(quercetin--3-O-β-D-glucoside)(10)；另外从正丁醇萃取部位分离得到1个化合物，以波谱数据和文献对照鉴定为：Morroniside(11)。

With the volatile oil content of Dalbergia odorifera as an index, the stability of the inclusion compound was examined under strong light, high temperature and volatilizing, respectively. In addition, the heat stability of the inclusion complex was investigated by DSC-TGA.

方法在不同溶媒的作用下以饱和水溶液搅拌法包合花梨木挥发油β-环糊精包合物，以花梨木挥发油含量为测定指标，分别对花梨木挥发油β-环糊精包合物和混合物进行强光照射、高温、挥发性实验并通过DSC-TGA对包合物进行了热稳定性研究。

This alloy can be used as a compound dexidant,desulphurizer and alloying addition in steel making,and can also be used as areductant in mediumlow carbon manganse iron productio or in metal manganese production by electruisilicon heating.

在炼钢中可作复合脱氧剂、脱硫剂、和合金添加剂，也可以作为生产中低碳锰铁和电硅热法生产金属锰的还原剂。

The Ce and La particulates in mischmetal were dispersively distributed into the Mg melt before the formation of Al RE compound and may serve as substrate for heterogeneous nucleation with 0.05% mischmetal addition.

过热处理工艺对Mg Al系合金有明显的细化作用，但不同成分的合金所需的过热温度不一样，通常的过热温度在液相线温度以上 15 0℃到 2 6 0℃之间[1] 。

In addition, ice grape wine also contains human metabolism of amino acid, the red wine polyphenols compound can dilate blood vessels, hemal wall keep elasticity and improve KuoZhangLi capillary, kill bacteria or germs.

另外，冰酒还含有人体代谢所需的氨基酸，红冰酒中的多酚类化合物能扩张血管，使血管壁保持弹性，提高毛细血管的扩张力，杀死细菌或病菌。

Laminarian polysacchorides ; compound enzymes ; enzyme addition ; extracting rate ; polysacchoride content

海带多糖；复合酶；加酶方式；提取率；多糖含量

A Michael addition of dimethyl malonate and 2-pentyl-cyclopentenone could conduct a precursor which used for preparing aim compound by a selective decarboxylation.

中间体化合物2-戊基环戊烯酮在一定条件下经Michael加成和选择性脱羧反应合成目标化合物。

Chapter 3 The imine salt is formed initially by the addition of an organolithium compound to the aromatic nitrile. This type of reaction usually leads to cyclic products.such as triazines.

第三章研究发现有机锂化合物LiCH_2[SiMe(NMe_2)_2]与芳香腈(如苯腈、邻甲基苯腈、间甲基苯腈)反应，可以得到2，4，6-三取代均三嗪，这是一种该类均三嗪的简单有机合成方法。

Mehods Commercially available glycine ethyl ester hydrochloride was used as starting material to give the target compound via addition, protection with BOC, Dieckmann cyclation, reduction with NaBH4 and LiAlH4, protection, oxidation, oximation and deprotection.

以甘氨酸乙酯盐酸盐为原料，依次经加成、BOC保护氨基、Dieckmann环化、NaBH4还原羰基、LiAlH4还原氰基、BOC保护氨甲基、氧化、肟化、脱BOC保护等9步反应制得目标化合物。

The addition of model compound promotes conversion of tetralin solvent so that conversion of later rose to 10.92% under above conditions.

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The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。