Its ether extract contains Isopsoralen and Bergapten.

香豆素类应为五指毛桃的有效部位之一。

He lost consciousness at the first whiff of ether.

他一嗅到乙醚便失去知觉。

No osmyl and no taste.Soluble in Benzene,Acetone,C2H4Cl2,CS2,toluene,party soluble in alcohol,diethyl ether,insoluble in water,gasoline.

溶于丙酮、苯、甲苯、二硫化碳、二氯乙烷，微溶于乙醇和乙醚，不易溶于水和汽油。

Behaviors of armeen,tertiary amine,poly-amide and ether amide in floatation of kaolinite,pyrauxite and illite are studied.

研究脂肪伯胺、叔胺、多胺和醚胺四种药剂对高岭、叶腊、的浮选行为,结果表明捕收能力顺序为多胺>叔胺>醚胺>脂肪>伯胺。

In this paper, the cedrol methyl ether was synthesized by sodamide method.

本文采氨基钠法合成甲基柏木醚。

In this paper we prepared a series of azacrown ethers with side chains of tropone rings and their derivatives by the reactivity of seven-membered aromatic tropone rings.

本文七元芳香卓酮环的反应活性，合成出一系列以卓酮环及其衍生物为侧臂的氮杂冠醚。

It was shown that the curing process of resoles, at first, proceeded by condensation reaction of methylol groups, and the formation of dimethylene ether linkage was predominant.

结果表明热固性酚醛树脂的固化过程,首先是羟甲基发生缩合反应,缩合反应形成醚键是主要的。

The article is about how to use phosgene and p-nitrophenylamine to react in acetic ether's liquefier to produce p-nitro-phenyl isocyanate, Its best technological condition have been discussed.

光气和对硝基苯胺在乙酸乙酯溶剂中反应来制备对硝基异氰酸苯酯的方法，并讨论其最佳工艺条件。

Three open crown ethers were synthesized for the first time by using parathesin as the terminal group.They were characterized by IR, 1HNMR ,MS and EA.

以对氨基苯甲酸乙酯为端基合成3种酰胺型开链冠醚,并通过IR、~1HNMR、MS和元素分析确证它们的结构。

Benzylic ether phenolic resin is one of the main components of foundry polyurethane binder; its structure and preparation condition determine the performances of polyurethane binder.

苯醚型酚醛树脂是铸造聚氨酯粘合剂的主要成份之一,它的结构及合成工艺条件决定该类粘合剂性能。

Under acid condition open chaining crown ether diaromatic aldehyde can react, and they will synthesize a compound of chaining crown ether diaromatic aldehyde thiosemi-carbazone kind.

摘要链状冠醚二芳醛在酸性条件下与氨基硫脲反应，合成链状冠醚二芳醛缩氨硫脲类化合物。

The selective oxidation of ethers by chromic reagent, peroxide, nitric acid, oxygen and ozonide, as well as the ethers anodic oxidation are particularly introduced.

主要铬(Ⅵ)类试剂,过氧化物、硝酸、氧和臭氧等各类氧化剂对醚选择性氧化以及醚的阳极电氧化研究状况。

The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether.

通过付氏酰基化反应引入乙酰基，接着溴化、胺化，得到标题树脂。该法避免使氯甲醚。

Different solvent extractions of Spora Lygodii were obtained using methanol,chloroform and petroleum ether as medium.Experiments were carried out on them by FT-IR spectra.

以甲醇、氯仿、油醚为提取溶剂,提取中药材海金沙得到海金沙不同溶剂提取物,采红外光谱(FT-IR)图谱鉴别法对提取物进行实验。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子交换树脂固定床催化下与乙醇反应生成异菠基乙醚。

The cationic ring-opening polymerizations of epoxide based monomers were studied using tris(2-hydrooxyethyl) isocyanurate(THEIC) as initiator and trifluoroboron plus ether complex system as catalyst.

发现THEIC与环氧单体可在非均相体系中平稳地进行阳离子开环聚合反应。

Without action, even the most grand of dreams evaporate into the ether when left unnurtured in the misty realms of the mind.

但光有梦想是不行的，你还必须对自己的梦想有信心并付诸行动。

Archaean cell walls lack murein, a common component of bacterial cell walls, and their lipids have ether links rather than ester links.

古细菌的细胞壁缺乏细菌细胞壁组成的普遍物质-胞壁质，其连接是醚连接而不是酯连接。

Two new exocyclic ring-fused boron-dipyrromethene (BDP) dyes with benzo crown ether subunit at meso-position were prepared.Their spectroscopic and electrochemical properties were investigated.

本文报道两种中位为苯并冠醚亚单元取代的含稠合外环的硼-二吡咯亚甲基染料的合成、光谱和电化学性质。

119.0 g of cyclopentyl bromide and 19.4 g of magnesium are reacted in ether or THF to give a cyclopentyl Grignard reagent.

119克环戊溴和19.4克镁在空气中或者四氢呋喃中加入环戊格林尼亚试剂作发生反应。