As novel intermediates for chiral catalysts,a series of mono-and di-alkyloxypyridine bromide(5 and 2) were synthesized from the 2-cholopyridine and 2,6-dichlorpyridine by the reaction of alkyloxy-substitution and selective mono-bromination,respectively.
以氯代吡啶为原料,经烷氧基取代,选择性单溴代,合成了系列烷氧基溴代吡啶,最后利用锂化反应的区域选择性,制备了二苯基膦烷氧基溴代吡啶;并对反应选择性进行了重点讨论。
So cetyltrimethyl ammonium bromide was chose as catalyst for synthesis bromooctane during phase transfer catalyst.
研究了相转移催化合成溴代正辛烷的工艺,分析了催化剂的用量、物料配比、反应温度、反应时间对收率的影响。
Study on synthesis of n-octyl bromide catalyzed by solid superacids S_2O_8~(2-)/ZrO_2-SiO_2-Sm_2O_3;
固体超强酸S_2O_8~(2-)/ZrO_2-SiO_2-Sm_2O_3催化合成溴代正辛烷的研究
Synthesis of n-octyl bromide with hydrobromic acid and n-octyl alcohol as reactants and rare earth solid super acid SO 4 2-/ZrO 2/Ce 4+as catalyst was studied.
以稀土固体超强酸SO4 2 -/ZrO2 /Ce4 + 为催化剂 ,氢溴酸和正辛醇为原料 ,合成了溴代正辛烷。
The yield of n-octyl bromide was about 87.
以正辛醇和氢溴酸为原料,钼镍粉做催化剂,合成了溴代正辛烷。
00 and in the presence of tetradecyl pyridine bromide(TPB),iron(Ⅲ) reacts on p-DEMPF to form a bluish violet complex.
H2O缓冲体系中,铁(Ⅲ)与对二乙氨基苯基荧光酮(p-DMEPF),溴代十四烷基吡啶(TPB)反应生成三元蓝紫色配合物,其吸光度值与铁(Ⅲ)的浓度成正比,据此建立了测定微量铁的分光光度新方法。
Victoria blue-KIO_4-cetyl pyridine bromide(CPB)-system inhibitory kinetic spectrophotometric determination of trace Ce(Ⅳ) in food
维多利亚蓝-高碘酸钾-溴代十六烷基吡啶体系阻抑动力学光度法测定痕量铈
Bentonite was modified with cetyl pyridine bromide first, and then compounded with Al2(SO4)3 this paper.
用溴代十六烷基吡啶对天然膨润土进行改性,制得CPB-膨润土,然后与Al2(SO4)3复合制得复合CPB-膨润土。
The effects of quaternary ammonium salt cetyl pyridine bromide (CPB) on vase cut flowers ofDianthus caryophyllus L.
3g·L-1季铵盐化合物溴代十六烷基吡啶(CPB)后,瓶插液中微生物密度和切花茎杆基部病原菌分离频率下降,切花后期的水分平衡和鲜重能较好地维持,花冠直径增大,观赏寿命延长。
Conductivity Behavior of Microemulsion System of Hexadecylpyridine Bromide
溴代十六烷基吡啶微乳液体系的电导行为研究
Fading Spectrophotometric Method for the Determination of Cetylpyridinium Bromide with Azo Blue
偶氮蓝褪色光度法测定溴代十六烷基吡啶
Study on the chromogenic reaction of the system Samarium (III) DBS-chlorophosphonazo-hexadecylpyridinium bromide-ethanol;
二溴磺酸偶氮氯磷-溴代十六烷基吡啶-钐-乙醇显色体系的分析研究
Extraction of fucoidan-galactosan sulfate from Laminaria jap onica with cetylpyridinium bromide
溴代十六烷基吡啶法提取海带岩藻半乳聚糖硫酸酯
Determination of dermatan sulfate with hexadecylpyridinium bromide by resonance rayleigh scattering
溴代十六烷基吡啶光谱探针RRS法测定硫酸皮肤素
Victoria blue-KIO_4-cetyl pyridine bromide(CPB)-system inhibitory kinetic spectrophotometric determination of trace Ce(Ⅳ) in food
维多利亚蓝-高碘酸钾-溴代十六烷基吡啶体系阻抑动力学光度法测定痕量铈
Separation of Platinum(Ⅳ) by Floatation with the Reaction System of Cetylpyridine Bromide-Potassium Bromide-Sodium Nitrate
溴化十六烷基吡啶-溴化钾-硝酸钠体系浮选分离铂
cetylpyridinium bromide precipitation
鲸蜡基溴化吡啶鎓沉淀法，十六烷基溴化吡啶鎓沉淀法[纯化寡核苷酸的一种方法]
Study of the Colour Reaction of Alu-minium(Ⅲ)ith 5’-Nitrosalicylfluoroneand Cetylpyridinium Bromide
铝－5＇－硝基水杨基荧光酮－溴化十六烷基吡啶显色反应的研究及应用
Determination of Dextran Sulfate Sodium with Cetylpyridinium Bromide by Resonance Rayleigh Scattering;
溴化十六烷基吡啶共振瑞利散射光谱法测定葡聚糖硫酸钠
The Reactivity of the Bromine of 2-Bromopyridine in the Reaction with Sodium Alcoholates
溴吡啶的溴原子被烷氧基取代的化学活性
Spectrophotometric Study on the ColourReaction of Palladium(Ⅱ)with 1,4-dihy-drazino-phthalazine in the presence ofcationic Surfactant CPC.
氯代十六烷基吡啶存在下钯与1，4－双肼酞嗪新显色反应的研究
Studied on Flotation Separation of Bismuth (III) by Ammonium Sulfate-Potassium Iodide-Crystal Violet System in the Presence of CPB;
溴化十六烷基吡啶存在下硫酸铵—碘化钾—结晶紫体系浮选分离铋(Ⅲ)的研究
Spectrophotometric Determination of Trace Amounts of Beryllium in Geochemical Reference Samples by Chrome azurol S and Cetyl pyridinium Bromide;
铬天青S-溴化十六烷基吡啶(CPB)分光光度法测定地球化学标样痕量铍
Adsorption and Inhibition Effect of Tetradecylpyridinium Bromide on Cold Rolled Steel in HCl Solution
HCl中溴化十四烷基吡啶在钢表面的吸附及缓蚀作用
hexadecyl tributyl ammonium bromide
十六烷基三丁基溴化胺
cetrimonium bromide
溴化十六烷基三甲基铵
CETAB (cetyl trimethy1 ammonium bromide)
十六[烷]基三甲基溴化铵