1) 2-Pyrazinecarboxylic acid
2-甲酸吡嗪
2) 2-pyrazinecarboxylic acid
2-吡嗪甲酸
1.
Single crystal of 2-pyrazinecarboxylic acid has been obtained through diffusion method and structurally characterized by single crystal X-ray diffraction analysis.
通过溶液法培养了2-吡嗪甲酸的单晶,利用单晶X-射线衍射法测定了其晶体结构,同时利用元素分析、红外光谱对其进行了表征。
3) 5-Methyl-2-pyrazinecarboxylic acid
2-甲基-5-吡嗪酸
5) 3,5,6-trimethyl-2-pyrazinecarboxylic acid
3,5,6-三甲基-2-吡嗪甲酸
1.
The mixture of phosphorus oxychloride and pyridine was treated with 3,5,6-trimethyl-2-pyrazinecarboxylic acid resulting in an acylating product which is proved to be 2-pyridinoyl-3,5,6-trimethylpyrazine through the analysis of MS,IR,1H NMR and 13C NMR.
本文报道了一个温和条件下发生的吡啶环α位上的酰化反应,即在室温下,将3,5,6-三甲基-2-吡嗪甲酸(川芎酸)加入到三氯氧磷和吡啶的混合物中,迅速发生反应,产物经MS,IR,1HNMR,13CNMR等谱图表征,为吡啶的α位酰化物。
6) Pyrazine-3-carboxylamide-2-carboxylic acid ammonium
3-甲酰胺-2-吡嗪甲酸铵
补充资料：2-甲酸吡嗪
分子式：C5H4N2O2
分子量：124.10
CAS号：98-97-5
性质：熔点222-225°C。水溶性SOLUBLE IN COLD WATER。
分子量：124.10
CAS号：98-97-5
性质：熔点222-225°C。水溶性SOLUBLE IN COLD WATER。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条