Picoline is the by-product in the preparation of diphenylamine with aniline.
吡啶是
连续缩合合成二
的副产物。
Picoline is the by-product in the preparation of diphenylamine with aniline.
吡啶是
连续缩合合成二
的副产物。
N,N-diethylaniline was synthesized under normal tempreture with tetraethyl ammonium hydroxide as phase transfer catalyst.
以和溴乙烷为原料,用四乙
氢氧
铵作相转移催
剂,在常压下合成N,N二乙
。
A new curing agent was synthesized by the reaction of phenylamine-formaldehyde and dicyanodiamide.
利用-
醛与双氰
反应得到了一种改性产物。
A clean process for synthesizing fluobenzene with aniline was developed.
开发了以为原料的氟
清洁生产工艺。
Nitrodiphenylamine is synthesiized by direct condensing method,adsopting aniline and 2-nitrochlorobenzene as feeds,PEG as phase transfer catalyst.
以、邻硝
为原料,采用直接缩合法引入相转移催
剂合成邻硝
二
。
N,N-diethylaniline was synthesized from aniline with bromoethane using tetraethylammonium chloride as phase transfer catalyst under atmospheric presure.
用四乙作相转移催
剂可在常压下由
和溴乙烷合成N,N-二乙
。
Fluoroaniline is synthesized in two steps from p-nitrochlorobenzene and active potassium fluoride.
以对硝
和活性氟
钾等为原料,经二步法合成了对氟
。
A improved process of p-amino-N,N-dimethylaniline applied caustic soda solution as materials was introduced.
阐述了采用液碱(苛性钠溶液)代替氨水生产对氨-N,N-二
的方法。
The triphenylamine azo compounds were successfully characterized by matrix-assisted laser desorption-ionization time of flight mass spectrometry(MALDI-TOF MS).
利用质辅助激光解吸电离飞行时间质谱法分析三
偶氮
合物。
Metachromatic granules contain RNA and polyphosphates They are deeply stained with aniline dyes。They are characteristic features of the corynebacteria.
异染颗粒含RNA和多聚磷酸盐。用染料可浓染。是棒状杆菌的特点。
Dichlorofluorobenzene is prepared by diazotizating of 2,4-dichloro aniline and substituting of 2,4-dichloro diazo benzene with fluorinion.
在此概述了由2,4-二经过重氮
、置换制得2,4-二
氟
的生产新工艺,产品纯度达到99。
Methods To detect the sed occult blood of 200 specimens with both ortho-tolidine method and immunogold method.then analyse the results.
方法用邻联和便隐血胶体金检测试纸分别检测200例粪标本进行对照实验并分析。
The white mixture of starting materials turns green after milling, indicating the formation of polyaniline in its doped emeraldine oxidation state.
白色的初始材料混合物在球磨后变成了绿色,这表明,混合物在掺杂绿氧
状态下形成了聚
。
Organic colors related to carcinogenic aromatic amine, especially the important intermediate 3,3' dichloroaniline of organic color are discussed in details.
本文就有机颜料涉及的致癌芳香,特别是有机颜料的重要中间体3,3′二
联
作详细阐述,并对其他一些生态环保问题进行探讨。
Two series of thermotropic liquid crystalline polyureas were synthesized by the copolymerization of benzidine (or o-tolidine),1,6-hexane diamine and 2,4-toluene diisocyanate.
为合成新型热致液晶聚脲,以含液晶元的联
二
(或联邻
)、1,6-己二
、2,4-
二异氰酸酯为原料进行合成。
Every ten nude mice were killed at 8 and 12 weeks and were examined by safranine O-fast green and toluidine blue staining.
8,12周各处死10只,行蓝和番红O-固绿染色。
By the deoxidization of zero-valent iron,nitrobenzene,an organic compound hard to be biodegraded,can be deoxidized to nitrosobenzene,and further to aniline,which is easily biodegraded.
利用零价铁的还原性质,将难生物降解的有机物硝先还原生成亚硝
,然后再进一步还原成可生物降解的
。
The enantioselectivity of N-dodecanoyl-L-proline-3,5-dimethyl-anilide is also good, but the basic line fluctuates strongly due to containing benzene ring in its molecular structure.
虽然用N-十二酰-L-脯氨酸-3,5-二
作添加剂,手性选择性也较好,但由于含有
环,紫外吸收增强,
线波动严重。
A synthetic method of benazolin ethyl was present with ochloroaniline, ammounium rhodanide, sulfuryl chloride, sodium nitrite and ethyl chloroacetate as the raw materials.
报道了以邻、硫氰酸铵、硫酰
、亚硝酸钠和
乙酸乙酯为主要原料合成草除灵乙酯的方法。
N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.
以邻酸和对乙氧
为原料,经过
的
、二芳
的环
、N-烷
、硫代
反应合成了N-丁
-2-乙氧
硫代吖啶酮。
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