Its ether extract contains Isopsoralen and Bergapten.

香豆素类应为五指毛桃的有效部位之一。

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

本文采用氨基钠法甲基柏木。

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

究脂肪伯胺、叔胺、多胺和胺四种药剂对高岭石、叶腊石、伊利石的浮选为,结果表明捕收能力顺序为多胺>叔胺>胺>脂肪>伯胺。

One new solvent free impregnating resin based on unsaturated polyester with modified diphenylene ether is prepared.

以改性二苯树脂为原料，一种新颖不饱和聚酯型无溶剂浸渍绝缘漆。

Structure, mechanics, electricity, calorifics, radialization and chemicalproperties are reviewed for polyperfluoroethylene-propylene and tetrafluoroethylene perfluoroalkyl vinyl ether copolymer.

分别阐述聚全氟乙丙烯和四氟乙烯全氟代烷基乙烯基共聚物的结构和力学热学、辐射、化学性能。

In this thesis, the reaction of aldehydes with dimethyl -- dichlorosilane producingdimethylsilyl bis -- enol ethers has been studied.

本文对醛和二甲基二氯硅烷反应二甲硅基双烯醇进究。

For polysaccharide synthescs,ring open-ing polymerizatlon of 1,6-,1,4-,1,3-,and 1,2-anhydro sngars,and polycondensation of cya-noethylidene trityl ether sugars are described.

对多糖的主要介绍1，6-、1，4-、1，3-、1，2-缩水内糖的阳离子聚制备均聚多糖，及用糖原酸酯衍生物通过缩聚反应制备多糖。

In this paper ten lactonic crown ethers weresynthesized, of which seven were new compounds.Theirstructures were confirmed by EA,IR,1HNMR andMS analysis.

10个内酯型冠化物，其中7个冠是新化物，其结构均由元素分析，及红外、核磁、质谱分析证实。

The Applications of Arylboronic Acid in biaryl synthesis,synthesis of diaryl ethers,synthesis of aromatic amines and catalytic addition reactions were summarized.

综述芳基硼酸在联芳基、二芳基、芳香胺和催化加反应中的应用。

A novel family of ester acetal molecular glass materials has been created by the reaction between monocarboxylic acid and divinyl ethers.

通过一元羧酸和二乙烯基的反应,我们得到一种新颖的酯缩醛结构分子玻璃。

In this paper,a type of kilomega bps chips group for ether net which surpasses the standards by large abundance is presented.

介绍一种性能超越规范很宽裕量的千兆位以太网芯片组。

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的普遍物质-胞壁质，其连接是连接而不是酯连接。

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

但光有梦想是不的，你还必须对自己的梦想有信心并付诸动。

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。

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亚单元取代的含稠外环的硼-二吡咯亚甲基染料的、光谱和电化学性质。

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

主要介绍铬(Ⅵ)类试剂,过氧化物、硝酸、氧和臭氧等各类氧化剂对选择性氧化以及的阳极电氧化究状况。

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、石油为提取溶剂,提取中药材海金沙得到海金沙不同溶剂提取物,采用红外光谱(FT-IR)图谱鉴别法对提取物进实验。

Quaternary ammonium salt was used as catalyst for transporting phenoxide ion between two phases to give benzyl phenyl ether and its derivatives in multiphase system.

在多相体系中,以铵盐为催化剂苄苯及其衍生物,产率高达91%,转化率达到983%。

The study is the synthesis of BFO in the medium of PEG or its derivatives - polyethylene glycol alkyl ether and polyethylene glycol alkylphenyl ether.

本论文以PEG或其衍生物脂肪醇聚氧乙烯和烷基酚聚氧乙烯为介质BFO。

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.

苯型酚醛树脂是铸造用聚氨酯粘剂的主要份之一,它的结构及工艺条件决定该类粘剂性能。