甲基溴
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New contributions of this work are as follows:(1). Preparation of Spherical MgCl_2-Supported Late-Transition Metal Catalysts for Ethylene Polymerization Facile and effective immobilization of late-transition metal catalysts. 2,3-bis-(2,6-diisopropylphenyl) butane diimine nickel dibromide (1) and 2,6-bis-[1-(2,4,6-trimethylphenylimino)ethyl]pyridine iron dichloride (2), for ethylene polymerization has been achieved, using spherical MgCl_2 supports obtained by thermal dealcoholization of MgCl_2·2.56C_2H_5OH, and the effects of dealcoholization temperature on supported late-transition metal catalysts and the properties of resultant polymers were studied, the results indicated that: 1.Supports with appropriate mechanical strength, high surface area and high porosity could be prepared by thermal dealcoholization of spherical MgCl_2·2.56C_2H_5OH supports; 2.BET, XRD, IR, SEM, GPC and DSC analyses indicate that the activities of the supported late-transition metal catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature.
本工作的新贡献如下:(1)、球形氯化镁负载后过渡金属催化荆催化乙烯聚合本文将配合物2,3-双(2,6-二异丙基苯亚胺)丁烷二溴化镍(1)和配合物2,6-二[1-(2,4,6-三甲基苯亚胺)乙基]吡啶二氯化铁(2)分别直接负载于经不同热脱醇温度处理的球形氯化镁载体上,研究了氯化镁载体的脱醇温度对负载化后过渡金属催化剂及其聚合物的影响,研究表明: 1、通过对球形MgCl_2·2.56C_2H_5OH载体进行热脱醇处理,可以获得合适机械强度、较高比表面积和较高孔隙度的球形氯化镁载体; 2、BET,XRD,IR,SEM,GPC和DSC研究表明,脱醇温度极大地影响负载后过渡金属催化剂的活性和聚合物的性能。
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The biological activity tests show that some target compounds have a good activity as plant growth regulator, and N-5-(3-carboxy-1H-1,2,4-triazolyl)-N'-o- chlorophenylfonnyl urea, N-5-(3-carboxy-1H-1,2,4-triazolyl)-N'-o- bromophenylformyl urea, N-5-(3-carboxy-1H-1,2,4-triazolyl)-N'-p- methyl-phenyl formyl urea have excellent activity of auxin.
生测试验证明部分酰基脲类化合物具有良好的植物生长调节活性,其中N-5(3-羧基-1,2,4-三唑基)-N'-o-氯苯甲酰基脲、N-5-(3-羧基-1,2,4-三唑基)-N'-o-溴苯甲酰基脲和N-5-3-羧基-1, 2,4-三唑基)-N'-p(或m-甲基苯甲酰基脲具有优良的生长素活性。
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The fuberidazole was prepared by reaction of O-phenylendiamine with furfural at the presence of CTMAB as catalyst.
以邻苯二胺和糠醛为原料,以十六甲基三烷基溴化铵为催化剂合成了麦穗宁。
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Methods Activate GAMP with cyanogens bromide and prepare GAMP-protein conjugates using ADH as a linker and EDAC as a coupling agent.
方法采用溴化氰活化多糖,以无水己二酸二肼为连接剂,1-乙基-1-3-(3-二甲基氨基-丙基)-碳化二亚胺为偶联剂,制备结合物并免疫小鼠,检测小鼠血清中抗GAMP与抗载体蛋白抗体及抗GAMP抗体的杀菌活性。
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Methods Activate GAMP with cyanogens bromide and prepare GAMP-protein conjugates using ADH as a linker and EDAC as a coupling agent. Immunize mice with the conjugates and determine the antibodies against GAMP and carrier proteins in their sera as well as the bactericidal activity of antibody against GAMP.
采用溴化氰活化多糖,以无水己二酸二肼为连接剂,1-乙基-1-3-(3-二甲基氨基-丙基)-碳化二亚胺为偶联剂,制备结合物并免疫小鼠,检测小鼠血清中抗GAMP与抗载体蛋白抗体及抗GAMP抗体的杀菌活性。
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The hypochlorous acid and hypobromous acid contained in this bactericide bear extremely strong membrane diffusing-penetrating ability for the absence of charge so as to kill pathogens rapidly.
"甲基利"高效植物病害杀菌剂是一种高效广谱、内吸、治疗型杀菌剂、所含的次氯酸分子和次溴酸分子不带电荷,有极强的扩散穿透细胞膜能力,可迅速将病原体杀死,适用于作物各个生长期,特别对各种真菌性、细菌性和病毒性的疑难病害有独特的铲除效果。
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In the medium of H_2SO_4 and catalyzed by potassium bromide, iodate can oxidize and decolorize methyl orange very well.
基于硫酸介质中,碘酸根在溴化钾的催化作用下对甲基橙有较好的氧化褪色作用。
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Odoquinazolin-4(3H)-one,7-methyl-4(3H)-quinazolinone,7-bromoquinazolin-4(3H)-one were synthesized by using anthranilic acid、2-amino-5-nitrobenzoic acid、2-amino-4-nitrobenzoic acid,6-nitro--4(3H)-quinazoline-one、o-amino-terephthalic acid, 2-amino-4-hydroxy benzoic acid、2-amino-5-bromo-benzoic acid、2-amino-5-iodine acid,1、4-butynediol、L-glutamine、isatin anhydride、formamide as starting materials and utilizing microwave-assisted synthetic approach.
本文利用微波辅助合成的方法,以邻氨基苯甲酸、2-氨基-5-硝基苯甲酸、2-氨基-4-硝基苯甲酸、邻氨基对苯二甲酸、2-氨基-4-羟基苯甲酸、2-氨基-5-溴苯甲酸、2-氨基-5-碘苯甲酸、5-甲基-2-氨基苯甲酸等为原料与甲酰胺反应,以及以1,4-丁炔二醇、L-谷氨酰胺与靛红酸酐反应,共合成了13个喹唑啉酮衍生。。。
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Exxpro specialty elastomers are brominated polymer s derived from a co polymer of isobutylene and paramethylstyrene.
Exxpro特种弹性体是一种溴化聚合物,由异丁烯和对甲基苯乙烯共聚物制得。
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Exxpro specialty elastomers are brominated polymers derived from a copolymer of isobutylene and paramethylstyrene.
Exxpro特种弹性体是一种溴化聚合物,由异丁烯和对甲基苯乙烯共聚物制得。
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I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
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At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
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Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。