Coupling theory of atom with Core in electromagnetic field;
电磁场中原子与Core相互作用的偶合理论
The change of adiabatic temperature was small during coupling isomerization with aromatization of hexene-1,because both re.
提出了催化裂化汽油中己烯-1为代表的异构化和芳构化偶合反应的化学平衡模型。
A series of new azobenzenes with different electron effect substituents were prepared from the coupling reactions of benzoguanamine(BGA) and diazonium salts,which obtained by diazotizing the arylamines with different electron effect substituents(the mole ratio of arylamine to sodium nitrite is 1 ∶1.
8)发生偶合反应,最终得到一系列新的含有不同取代基的芳香族偶氮化合物,反应收率为57%~65%。
In this paper,by using hydroxyl mesocyclic diamine as raw material,we synthesized six novel compounds of bridged double mesocyclic diamine through the coupling reaction with multi-glycol p-xylene acid ester or dibromoalkane,under the existing of Sodium hydride.
以含羟基中环二胺为原料,在氢化钠存在下,与多甘醇二对甲苯酸酯或二溴代烷烃发生偶合,合成了6个新型桥链双中环二胺化合物,并通过核磁共振谱、质谱、元素分析和红外光谱表征了其结构。
The title compound was prepared from \%o\%aminophenol and \%m\%phenylenediamine by diazotisation, coupling reaction and closure, yield was 80 %.
以邻氨基酚和间苯二胺为原料,经重氮化、偶合、环化制备2 (2 羟基苯基) 5 氨基 2H 苯并三唑化合物,产率为80%。
It was prepared from \%o\% nitroaniline and \%m\% aminophenol by diazotisation, coupling reaction and reduction, yield was 89%.
以邻硝基苯胺和间氨基酚为原料 ,经重氮化、偶合、还原制备了 2 (2 羟茎 4 氨基苯基 )氢化苯并三唑 ,产率为 89% 。
An exploration of the coincidence,parallel and gap between English and Chinese metaphor;
英汉隐喻表达的偶合、并行、空缺现象探源
The paper intends to show the coincidence of the two cultures.
因此,深入到文化的内核,通过中西谚语、成语能够透视到中西文化的偶合现象。
The synthetic method of Acid Brown G with mono-sodium salt of H acid,resorcin,p-nitroaniline and 2-amino-4-nitro-phenol as the raw materials was introduced in the paper and at the same time,the conditions of diazo and couple reactions were also investigated.
本文介绍了以H-酸单钠盐、间苯二酚、对硝基苯胺、2-氨基-4-硝基苯酚为主要原料合成酸性棕G染料的方法,并对重氮反应和偶合反应条件进行了研究。
The process of Acid Red 2GL is mainly introduced in this paper,and the conditions of both diazo-couple reaction and complexation reactions are also discussed.
本文主要论述了中性红2GL染料的合成工艺路线,并对重氮偶合反应和络合反应条件进行了讨论。
Firstly DASA was diazotized,then coupled with H acid at acid condition.
本文介绍了4,4′-二氨基苯磺酰苯胺(简称DASA)双重氮化,在酸性条件下与H-酸偶合,苯胺重氮化,与上述所得产物在碱性条件下偶合,然后再与间苯二胺偶合,合成出弱酸性黑NB-G染料合成工艺,并对工艺条件进行了研究。
Three N-12-hydroxyacylamino acid based surfactants(acidic,basic and neutral) were synthesized using 12-hydroxystearic and three kinds of natural amino acid as main raw materials and N,N′-dicyclohexylcarbodiimide (DCC) and N-hydroxysuccinimide(NHS) as coupling agents.
以12-羟基硬脂酸和3种不同类型的天然氨基酸为原料,采用N,N′-二环己基碳酰亚胺(DCC)和N-羟基丁二酰亚胺(NHS)作为偶合剂,合成了3种具有代表性的N-12-羟基硬脂酰氨基酸(酸性、中性和碱性)表面活性剂。