弱碱（吡啶，二甲基吡啶或可力丁）的存在将亚磷酸三酯氧化为四配位磷酸三酯。
The presence of a weak base (pyridine, lutidine, or collidine ) oxidizes the phosphite triester into a tetracoordinated phosphate triester.
本文介绍的基于氨氧化法生产烟酸的工艺，选择了适当的复合催化剂，使原料3-甲基吡啶转化率可达99％，技术水平达到国外先进水平。
The manufacture process of nicotinic acid based on ammonia oxidation method, which is introduced in this article, reached 99% conversion of 3-methyl pyridine.
以2,6 -二氯吡啶为原料，通过硝化，取代，还原，环化，氧化等几步反应可得到目标化合物。
From 2, 6-dichloropyridine as starting material, we can get the target molecule through nitration, substitution, reduction, cyclization, oxidation etc.
三氧化铬与吡啶反应制备吡啶重铬酸盐。
方法利用溴、溴化锂和助催化剂吡啶方法同时进行氧化脱氢。
METHODS Using the bromine, the lithium bromide and the promoter pyridine carried out the oxidized dehydrogenation.
本文综述了吡啶类-N- 氧化物合成方法，介绍了该类化合物的化学性质及其在催化、医药、染料等领域的应用。
Some synthetic methods of pyridine-N-oxide and its derives were reviewed. Their chemical properties and applications in pesticide medicine, catalysts and other fields were described also in detail.
在最初的滴定溶液里，已知的是卡尔费休试剂，二氧化硫和碘溶解在吡啶和甲醇中。
In the original titrimetric solution, known as Karl Fischer Reagent, the sulfur dioxide and iodine are dissolved in pyridine and methanol.
吡啶可以和卤素、硝基四氟化硼盐、 三氧化硫、硼烷及三氧化铬反应，形成一些有用的有机试剂。
Pyridine can react with halogens, nitronium fluoroborate, sulfur trioxide, boranes and chromium trioxide to form some useful organic reagents which are introduced briefly in the paper.
用失重法研究了氢氧化钠溶液中氯化十六烷基吡啶在铝表面上的吸附及其缓蚀作用。
The adsorption isotherm of cetane pyridine chloride in sodium hydroxide solution on aluminium surface has been measured by corrosion weight losses and its corrosion inhibition has been investigated.
目的以正常大鼠组织匀浆、肝亚细胞及给药小鼠肝匀浆、血清等为材料研究6 苯硫基2乙基3羟基4（1H）吡啶酮（HDP）的抗氧化作用。
AIM To study anti oxidation of 6 phenylthio 2 ethyl 3 hydroxy 4(1H) pyridinone (HDP) in tissues homogenates, livers subcellular and in serums from mice.
采用由乙酸钯、2 ，2’ 联吡啶与强酸组成的催化体系，催化一氧化碳和苯乙烯的共聚反应合成聚酮（STCO）。
Polyketone (STCO) was prepared by the copolymerization of carbon monoxide and styrene catalyzed by a composite catalyst system- palladium acetate, 2,2' bipyrodine associated with a strong acid.
为确证其化学结构，以2-氨基吡啶为原料，通过五步合成了2-巯基吡啶-N-氧化物锌盐。
Its chemical structure has been determined as the zinc salt of 2-mercaptopyridine N-oxide by means of synthesizing by five steps starting with 2-aminopyridine.
还公开了乙烯基吡啶聚合物囊封的过渡金属及其应用于氢气与氧气制备过氧化氢的方法。
Vinylpyridine polymer-encapsulated transition metals and their use to produce hydrogen peroxide from hydrogen and oxygen is also disclosed.
研究了铜与1-（2-吡啶偶氮）-2-萘酚（PAN）的显色反应，建立了测定硫酸阳极氧化液中铜的新方法。
The color reaction conditions of Cu 2+ and 1-(2-pyridylazo)-2-naphthol(PAN)were researched, and a new method was developed for the determination of copper in sulfuric acid anodizing liquor.
然后脱硝基得到4-羟基吡啶-N-氧化合物，最后用锌和甲酸铵还原4-羟基吡啶-N-氧化合物得到产物4-羟基吡啶。
At last, the target product 4-Hydroxypyridine was gaven by reduction of 4-Hydroxypyridine N-oxide using zinc and Ammonium Formate as catalysts.
添加剂4-苯基吡啶氮氧化物（PPNO）或三甲基氧化氨（MNO）对产物的对映选择性略有改善。
The addition of the donor ligand such as 4-phenylpyridine N-oxide (PPNO) or trimethylamine N-oxide (MNO) exhibits a minor positive effect on the enantioselectivity.
将100ml的吡啶至250ml的量筒中，使吡啶在冰浴中保持冷，加干燥的二氧化硫直至体积达到200ml。
Place 100 mL of pyridine in a 250-mL graduated cylinder , and, keeping the pyridine cold in an ice bath, pass in dry sulfur dioxide until the volume reaches 200 mL.
以4甲基吡啶为原料，在固定床反应器中通过含氧化钒的催化剂发生气固相接触氨氧化反应制备雷米封中间体4氰基吡啶，4甲基吡啶的转化率为99%，4氰基吡啶的选择性为88%，收率为87。
4-cyanopyridine, intermediate of rimifon, was synthesized from 4-picoline using vanadium oxide as a catalyst in a fixed-bed reactor, reached 99% conversion of 4-picoline, 88% selectivity and 87.
在含硫酸铜的酸性水溶液中，用氯酸钠作氧化剂，氧化喹啉得到2，3-吡啶二甲酸，产率为56·4%；
In the acidic aqueous solution of copper sulfate, pyridine-2,3-dicarboxylic acid was synthesized by oxidizing quinoline with sodium chlorate, and the yield of the product could reach 56.4%.
同时还研究了吡啶离子液体萃取-氧化汽油脱硫的情况。
We also researched the extraction-oxidation desulfurization with N-alkyl-pyridinium-based ionic liquids.
同时还研究了吡啶离子液体萃取-氧化汽油脱硫的情况。
We also researched the extraction-oxidation desulfurization with N-alkyl-pyridinium-based ionic liquids.
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