5-BroMopyrrole-2-carboxaM...
5-Bromo-1H-pyrrole-2-carboxamide
CAS: 17543-94-1
Molecular Formula: C5H5BrN2O
5-BroMopyrrole-2-carboxaM... - Names and Identifiers
| Name | 5-Bromo-1H-pyrrole-2-carboxamide |
| Synonyms | 5-Bromopyrrole-2-carboamide 5-BroMopyrrole-2-carboxaM... 5-BroMopyrrole-2-carboxaMide 5-Bromo-1H-pyrrole-2-carboxamide 1H-Pyrrole-2-carboxamide, 5-bromo- |
| CAS | 17543-94-1 |
| InChI | InChI=1/C5H5BrN2O/c6-4-2-1-3(8-4)5(7)9/h1-2,8H,(H2,7,9) |
5-BroMopyrrole-2-carboxaM... - Physico-chemical Properties
| Molecular Formula | C5H5BrN2O |
| Molar Mass | 189.01 |
| Density | 1.841±0.06 g/cm3(Predicted) |
| Melting Point | 136-138 °C |
| Boling Point | 370.1±27.0 °C(Predicted) |
| Flash Point | 177.65°C |
| Vapor Presure | 0mmHg at 25°C |
| pKa | 14.47±0.50(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.647 |
5-BroMopyrrole-2-carboxaM... - Risk and Safety
| Hazard Symbols | Xi - Irritant |
5-BroMopyrrole-2-carboxaM... - Introduction
Pyrrolium, also known as 5-bromopyrrodinil, is an organic compound. The following is a description of its nature, use, preparation and safety information:
Nature: The chemical formula of
is C6H4BrNO, and the relative molecular mass is 199.01. It is a white to yellow crystal with a strong pungent odor. It is soluble in water, alcohols and Ether solvents at room temperature, but insoluble in non-polar solvents such as petroleum ether.
Use:
It has important uses in organic synthesis. It can be used as a reagent for solid-phase synthesis, acting as a catalyst, acid catalyst and dehydrating agent in chemical reactions. It can also be used to synthesize other compounds in organic synthesis, such as the synthesis of heterocyclic compounds, the preparation of laser dyes, etc.
Method:
A common method for preparing pyrrole is to react bromopyrrole with formamide in the presence of a base. First, pyrrole is dissolved in absolute ethanol, bromine and formamide are added, and then an appropriate amount of alkali catalyst is added, and the reaction is carried out for a period of time. Finally, the reaction solution is washed and extracted with water or alcohol, and the target product is obtained by crystallization.
Safety Information:
is a more irritating compound. May cause eye, skin and respiratory tract irritation when contacted. Wear appropriate personal protective equipment such as lab gloves, goggles, and protective clothing during operation. Avoid breathing its vapors and operate with good ventilation if necessary. In the case of accidental contact or inhalation, immediately go to a place with fresh air to clean or provide appropriate medical assistance.
Nature: The chemical formula of
is C6H4BrNO, and the relative molecular mass is 199.01. It is a white to yellow crystal with a strong pungent odor. It is soluble in water, alcohols and Ether solvents at room temperature, but insoluble in non-polar solvents such as petroleum ether.
Use:
It has important uses in organic synthesis. It can be used as a reagent for solid-phase synthesis, acting as a catalyst, acid catalyst and dehydrating agent in chemical reactions. It can also be used to synthesize other compounds in organic synthesis, such as the synthesis of heterocyclic compounds, the preparation of laser dyes, etc.
Method:
A common method for preparing pyrrole is to react bromopyrrole with formamide in the presence of a base. First, pyrrole is dissolved in absolute ethanol, bromine and formamide are added, and then an appropriate amount of alkali catalyst is added, and the reaction is carried out for a period of time. Finally, the reaction solution is washed and extracted with water or alcohol, and the target product is obtained by crystallization.
Safety Information:
is a more irritating compound. May cause eye, skin and respiratory tract irritation when contacted. Wear appropriate personal protective equipment such as lab gloves, goggles, and protective clothing during operation. Avoid breathing its vapors and operate with good ventilation if necessary. In the case of accidental contact or inhalation, immediately go to a place with fresh air to clean or provide appropriate medical assistance.
Last Update：2024-04-10 22:29:15
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