The content of ethoxyl group in obtained product was 43.98%.

该法所得乙基纤维素产品的乙氧基含量为43.98%。

N,N-diethylaniline was synthesized under normal tempreture with tetraethyl ammonium hydroxide as phase transfer catalyst.

以苯胺和溴乙烷为原料,用四乙基氢氧化铵作相转移催化剂,在常压下N,N二乙基苯胺。

The major components were Triphenylmethane, Phytol, n-Hexadecanoic acid, Phenol, 2,4,6-tris (1,1-dimethylethyl).And etc.

其主要分是三苯基-甲烷、叶绿醇、正十、2,4,6-三（1,1-二甲乙基）-苯酚等，这为进一步开发利用蒌蒿提供科学依据。

Dimethyl phenylethyl carbinyl acetate (DPCA ) was synthesized by using a new catalyst. This technology decreases the pollution and can also be used in synthesis of other carbinyl acetates perfume.

用一种新型催化剂乙二甲基苯乙基原酯(DPCA),并简化工艺,减少生产过程中产生的三废,因而投入生产已具备必要条件。这种新型催化剂可用于其它原酯类香料的。

This paper studied the new synthetic technology of taurin (2- aminoethanesulforic acid).It was synthe sized by the reaction of monoethanol amine sulfate with sodium sulfrous in yield of 85%.

究牛磺（2-氨乙基磺）的新工艺：用氨基乙醇硫酯与亚硫钠溶液反应制备，收率达85％。

The paper studied the preparation of bromine from basic Magnesium bromide in the production of maltol and ethyl maltol, the synthesis of bromethyl from bromine, sulfur and alcothol.

究以麦芽酚、乙基麦芽酚生产中的碱式溴化镁废渣为原料制取溴;以溴、硫和乙醇溴乙烷的方法。

Etodolac was synthesized with 7-ethyltryptophol and methyl 3-oxopentanoate as the starting materials.Highly pure etodolac was obtained by purifying the crude product with a mixing solvent.

以7-乙基色醇和3-氧代戊甲酯为起始原料,以甲醇为溶剂,依托度.采用混溶剂对粗品进行精制,得到高纯度的依托度.

Ethyl cellulose was synthesized successfully in one step based on reaction of cellulose with excess chloroethane and sodium hydroxide in toluene as diluent.

采用纤维素与过量的氯乙烷及氢氧化钠反应,以甲苯为稀释剂,用一步法功地乙基纤维素。

The mixture was refined by sodium sulfide and sodium hydroxide to afford an O,O-diethyl thiophosphoryl chloride at a purity of 99%.

该粗品通过精制工艺的改进,采用硫化钠和氢氧化钠的混物进行处理,得到纯度≥99%的O,O-二乙基硫代磷酰氯。

Trimethylaluminum(TMA),usually used in organic catalysis and organic synthesis,was synthesized by reaction of triethylaluminium (TEA) with methyl bromide on iron-stibonium complex catalyst.

用新的催化体系(铁-锑复催化剂)催化三乙基铝(TEA)与溴甲烷进行烷基交换反应三甲基铝(TMA)。

Two kinds of bis-hydroxyalkyl or bis-methyl formylate subtituted bis-ethylenedithio-tetrathiafulvalenes (BEDT-TTF) and their charger-transfer complexes (CT-complexes ) with TCNQ were synthesized.

带双羟烷基及双甲甲酯基取代的两种双二硫代亚乙基四硫代富瓦烯(BEDT-TTF)的衍生物及其它们与TCNQ的CT-络物。

The p-fluorophenoxy propionic acid was synthesized by p-fluorophenol and 3-chloropropanoic acid as row materials and transfer catalyzed by TEBA.

以对氟苯酚和3-氯丙为起始原料,用苄基三乙基氯化铵作为催化剂,经过相转移催化对氟苯氧丙。

By means of cyanoethylation and chlorination,wood sawdust was converted into thermoplastic material and then compounded with short sisal fibers.

通过氰乙基化反应,使木粉转化为热塑性材料,再与短切剑麻纤维混,热压制得植物纤维增强塑化植物纤维基复材料。

Objective:To study the preventive effect of Matrine(MT) and Oxymatrime(OMT)on rat hepatoma induced by diethylnitrosamine(DEN).

究苦参碱(MT)和氧化苦参碱(OMT)分别对二乙基亚硝胺(DEN)诱发大鼠肝癌的预防阻断作用。

Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.

以BTEAC(苄基三乙基氯化铵)为相转移催化剂异烟乙酯。

N,N-diethylaniline was synthesized from aniline with bromoethane using tetraethylammonium chloride as phase transfer catalyst under atmospheric presure.

用四乙基氯化胺作相转移催化剂可在常压下由苯胺和溴乙烷N,N-二乙基苯胺。

The solvent effect on the synthesis of diethylaluminum azide(DEAA) from diethylaluminum chloride(DECA) and sodium azide(NaN3) is discussed.

以氯化二乙基铝（DECA）和叠氮化钠为原料二乙基叠氮铝（DEAA）时，反应介质的溶剂性质不同，产物及其收率也不同。

Tetraethyl thiuram disulfide was synthesized one step from diethylamine and carbon bisulfide with hydrogen peroxide(27.5%) as oxidant.

以二乙胺和二硫化为原料,经双氧水(275%)氧化,一步四乙基秋兰姆化二硫。

Activated carbon as the sorbent and catalyst support was capsulated with ethyl cellulose by phase separation methods.

摘要对兼具吸附和催化剂载体功能的多孔结构活性炭，以乙基纤维素为材料用相分离进行包覆。

Catalytic synthesis of phenetole by ethylation of phenol with diethyl carbonate(DEC)in fixed bed reactor was investigated.

以二乙酯(DEC)为乙基化试剂,与苯酚在气固相条件下催化苯乙醚。