Pyrrole is a colorless volatile liquid that darkens readily upon exposure to air, and is usually purified by distillation immediately before use. [6] Pyrrole has a nutty odor. Pyrrole is a 5-membered aromatic heterocycle, like furan and thiophene.Unlike furan and thiophene, it has a dipole in which the positive end lies on the side of the …

吡咯可用1，4-二羰基化合物与氨反应制取，工业上吡咯由丁炔二醇与氨通过催化作用制备。吡咯与苯并联的化合物称为吲哚 ...

吡咯鹼性較其它胺類弱，其共軛酸的pK aH 約為–1到–2。 這是因為氮原子上的一對電子與兩個雙鍵上的電子形成離域體系（Π 5 6 ）。 正因為如此，吡咯有芳香性，形成共軛酸後芳香體系被破壞，故吡咯氮不易結合質子。. 吡咯有微弱酸性，其pK a 為16.5。 用正丁基鋰和氫化鈉之類的強鹼處 …

Pyrrol Parzate Pyrrhol PYRROLE Imidole pyrrole HSDB 119 AI3-18817 NSC 62777 CCRIS 2933 1H-Pyrrole Monopyrrole FEMA No. 3386 Divinylenimine Divinyleneimine UNII-86S1ZD6L2C 1-Aza-2,4-cyclopentadiene 4-methyl(di-pyrrol-2-yl-methtyl)pyridinium iodide: CAS : 109-97-7: EINECS : 203-724-7: 化学式 : C4H5N: 分子量 :

ChemicalBook 为您提供吡咯(109-97-7)的化学性质，熔点，沸点，密度，分子式，分子量，物理性质，毒性，结构式，海关编码等信息，同时您还可以浏览吡咯(109-97-7)产品的价格，供应商，贸易商，生产企业和生产厂家，最后吡咯(109-97-7)的中文，英文，用途，CAS，上下游产品信息可能也是您需要的。

Exposure to the gamma-diketone, 2,5-hexanedione, results in the accumulation of neurofilaments within the distal axon and is associated with acceleration of neurofilament transport within the proximal axon.The epsilon-amino groups of lysyl residues react with 2,5-hexanedione forming pyrrole adducts, followed by pyrrole-mediated protein crosslinking.

Objectives. After completing this section, you should be able to. draw the structure of the common aromatic heterocycles pyridine and pyrrole. use the Hückel 4n + 2 rule to explain the aromaticity of each of pyridine and pyrrole.; draw a diagram to show the orbitals involved in forming the conjugated six‑pi‑electron systems present in aromatic heterocycles such as pyridine, pyrrole, etc.

2018年9月5日 · Joshi et al. [183] synthesized a novel series of 4-pyrrol-1-yl benzoic acid hydrazide analogues, some derived 5-substituted-2-thiol-1,3,4-oxadiazoles, 5-substituted-4-amino-1,2,4-triazolin-3-thione and 2,5-dimethyl pyrroles and investigated for anti-tubercular activity against Mycobacterium tuberculosis H 37 Rv strain.

pyrrole, any of a class of organic compounds of the heterocyclic series characterized by a ring structure composed of four carbon atoms and one nitrogen atom. The simplest member of the pyrrole family is pyrrole itself, a compound with molecular formula C 4 H 5 N. The pyrrole ring system is present in the amino acids proline and hydroxyproline; and in …

吡咯环上的5个原子均为sp2杂化，处于同一平面，氮原子的一对未共用电子占据的p轨道，与四个碳原子的p轨道平行且重叠，形成5原子、6个π电子的闭合共轭体系，具有芳香性，易发生亲电取代反应。