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- azo ylides 偶氮叶立德
- Nylon fastening tapes with AZO free are available for108 colours. 尼龙粘扣带不含偶氮染料，常备108种颜色的现货。
- Removal of azo dye Acid Red B(ARB) by magnetic ferrite adsorbents. 用铁酸盐型磁性吸附剂去除偶氮染料酸性红B
- Nylon fastening tapes with AZO free are available for 108 colours. 尼龙粘扣带不含偶氮染料，常备108种颜色的现货。
- Anneal is in favor of the crystallization of AZO films. 退火有利于薄膜结晶;
- Azo test follow EU directives requirement is 30ppm max. 偶氮测试依据欧盟正式要求是最大值为百万分之30.
- How to choose the base used in the synthesis of arsine ylide is studied. 本文主要研究了胂叶立德合成中碱的选择。
- On the second part of the azo different nitrile synthesis of formamide. 第二部分研究了偶氮异丁腈甲酰胺的合成工艺。
- A group of multi substituted phenols were prepared via intramolecular wittig reaction of a kind of long chain phosphonic ylides. 一类含六个碳的长链叶立德通过分子内维蒂希反应可生成含氟多取代苯酚 .
- Meanwhile, a thin-layer chromatography for detecting those prohibited azo dyes in textiles is presented. 同时介绍了用薄层色谱分析法检测纺织品中禁用偶氮染料的方法。
- In this paper the advances of the chemistry including the syntheses and the reactions of hypervalent iodonium ylides in the latest ten years has been reviewed. 本文对近十年来碘叶立德化学包括碘叶立德的合成和反应的最新进展进行综述,并展望前景。
- Pay attention on azo free problem on direct dye, some of the direct dye used are still not Azo free. 请注意在直接染色中的要求不含氮的问题,有些在使用的直接染色仍然是含氮的。
- Interestingly, the stereoselectivity of ylide cyclopropanation could be controlled by the choice of the base used for the formation of ylide. 有趣的是，选择不同的碱，能够控制该叶立德环丙反应的立体化学。
- The main action of this photocatalyst on azo dye is degradation besides a certain adsor... 其对偶氮染料有一定的吸附作用,但主要为降解作用。
- In this paper, the synthesis method for 5-[(azophenyl) azo]-8-Aminoquinoline (APAAQ) has been reported in detail. 本文报道了新试剂5-[(偶氮苯基)偶氯]-8氨基喹啉的合成方法。
- Azo sensitizing dyes takes an important role in the poroporties of photofractive polymer composite. 偶氮增感染料在以聚乙烯咔唑为主体的光折变材料复合物中起着十分重要的作用。
- METHODS 3,4,5-trimethoxy-triphenyl benzylidene bromide phosphine salt,the important precursor of the phosphine Ylide,was synthesis from deoxidize,bromization and addition. 方法以3,4,5-三甲氧基苯甲醛为原料,经过还原、溴代、加成三步反应得到叶立德前体3,4,5-三甲氧基苄溴三苯基膦盐。
- An acid yellow was synthesized by diazo and azo,and characterized by elementary analysis, IR and 1H-NMR. 酸性黄是经过重氮化和偶合反应合成的一种偶氮染料,对它进行了IR、1H-NMR和元素分析的表征。
- Methods:Using bromoactate as starting material, ylide was prepared.Ylide and fullerene were used to produce the methano[C60] fullerene carboxylate and hydrolyze it. 方法:用溴乙酸乙酯制备硫叶立德,再与富勒烯[C60]制得相应的富勒烯[C60]羧酸乙酯,水解其乙酯。
- This type of thread confers the bright color and lustre, perfect color fastness to washing and light, without AZO dyes. 经过染色工艺的不断改进，使得该线具有光泽度高、日晒牢度高和皂洗牢度高的特点,不含偶氮。
