270970
吡啶
anhydrous, 99.8%
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关于此项目
经验公式（希尔记法）:
C5H5N
化学文摘社编号:
分子量:
79.10
UNSPSC Code:
12352005
NACRES:
NA.21
PubChem Substance ID:
EC Number:
203-809-9
Beilstein/REAXYS Number:
103233
MDL number:
Assay:
99.8%
Grade:
anhydrous
Vapor pressure:
10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)
grade
anhydrous
Quality Level
vapor pressure
10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)
assay
99.8%
form
liquid
autoignition temp.
899 °F
impurities
<0.003% water, <0.005% water (100 mL pkg)
evapn. residue
<0.0005%
color
colorless
refractive index
n20/D 1.509 (lit.)
pH
~8.81 (20 °C)
mp
−42 °C (lit.)
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General description
吡啶是一种碱性N-杂环化合物。它可充当氮供体配体并形成许多金属-吡啶复合物。其具有四面体和八面体几何形状的复合物可通过红外光谱研究来进行区分。
Application
吡啶可作为一种基质用于以下的转化：
它也可用于在不使用过渡金属催化剂的情况下催化卤代芳烃的硼酸化反应以形成芳基硼酸盐。
- 烷基三氯硅烷至三甲氧基烷基硅烷，而其可用作制备烷基硅酸盐的前体。
- 1-茚满酮至1-茚满酮肟，而其可进行还原性环扩展以形成四氢喹啉。
它也可用于在不使用过渡金属催化剂的情况下催化卤代芳烃的硼酸化反应以形成芳基硼酸盐。
吡啶（py）可用于制备氧化钒纳米颗粒以及苯二甲酸铁，Fe(OH)(BDC)(py)0.85（BDC = 1,4-苯二甲酸酯，py =吡啶）。它可被用作Knoevenagel缩合反应中的催化剂。
Packaging
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signalword
Danger
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2
存储类别
3 - Flammable liquids
flash_point_f
68.0 °F - closed cup
flash_point_c
20 °C - closed cup
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
法规信息
危险化学品
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商品
Effective in key synthesis reactions like Knoevenagel condensation, thalidomide synthesis, and Suzuki coupling for sustainable chemical transformations.
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