The manufacture process of nicotinic acid based on ammonia oxidation method, which is introduced in this article, reached 99% conversion of 3-methyl pyridine.
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。
A method was established for determining two intermediates in synthesis of imidacloprid, 2 chloro 5 methyl pyridine and 2 chloro 5 chloromethyl pyridine by HPLC.
建立了用高效液相色谱法同时测定农药吡虫啉中间体2 -氯-5 -甲基吡啶和2 -氯- 5 -氯甲基吡啶含量的方法。
In the picoline pyrolysis experiment, the methyl disengages from aromatic ring to form methane firstly, then the following reaction of the aromatic ring is similar to pyridine.
甲基吡啶的热稳定性比吡啶差，热解时甲基首先脱离芳香环进入气相，随后芳香环的反应途径和吡啶类似；
The quantitative relationships between the catalytic ability of Rh-complex of 2-vinyl pyridine-methyl methacrylate copolymer and the sequence structures of the copolymer ligands have been determined.
本工作定量测定了2-乙烯基吡啶-甲基丙烯酸甲酯-铑络合物的烯烃催化加氢性能与共聚物配体序列结构的关系。
N-Methyl-N-vinylacetamide was synthesized from N-methylacetamide and vinyl acetate with N, N-dimethylamino pyridine (DMAP) as catalyst.
以N-甲基乙酰胺、醋酸乙烯酯为原料，N，N-二甲氨基吡啶（DMAP）为催化剂，合成N-甲基-N-乙烯基乙酰胺。
In a certain condition, the corrosion inhibition properties of 2-methyl-pyridine 4-methyl-pyridine pyridine and 3-methyl-pyridine goes up respectively.
在一定的条件下，在盐酸和氯化铵溶液中，2-甲基吡啶、4-甲基吡啶、吡啶和3-甲基吡啶的缓蚀效率依次升高。
The invention discloses a 2-ammonia methyl-pyridine nickel composition, a preparation method and the application thereof.
本发明公开了一种2 -氨甲基吡啶镍配合物及其制备方法和应用。
The invention discloses a 2-ammonia methyl-pyridine nickel composition, a preparation method and the application thereof.
本发明公开了一种2 -氨甲基吡啶镍配合物及其制备方法和应用。
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