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 ...

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 :

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.

The ability of 10 pyrroles to block the acidic nitrosation of morpholine has been determined by using an assay that measures their effectiveness in the presence of a 10-fold excess of amine. The log (% N-nitrosomorpholine) formed is a linear function of blocking agent concentrations ranging from 0.0 to 1.5 times the equivalents of initial nitrate.The negative slopes of …

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。

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.

2024年8月16日 · Pyrrole is a heterocyclic structure with diverse pharmacophores, enabling the creation of an extensive lead molecule library. Its broad range of pharmacological profiles has concerned significant global research interests.

2023年11月5日 · Pyrrole is a heterocyclic compound, which finds application in various diseases. In this review, we list the natural and synthetic sources of pyrrole, along with various methods for its synthesis. Ac...

2024年4月22日 · Pyrroles are 5-membered heterocyclic aromatic compounds with a nitrogen atom and 4 carbons in a pentagonal ring.