3-Methylpyrazole-4-boronic acid
(3-Methyl-1H-pyrazol-4-yl)boronic acid
CAS: 1071455-14-5
Molecular Formula: C4H7BN2O2
3-Methylpyrazole-4-boronic acid - Names and Identifiers
| Name | (3-Methyl-1H-pyrazol-4-yl)boronic acid |
| Synonyms | 3-Methylpyrazole-4-boronic acid 3-Methyl-1H-pyrazole-4-boronic acid 3-Methyl-1H-pyrazol-4-ylboronic acid (3-Methyl-1H-pyrazol-4-yl)boronic acid Boronic acid, B-(3-methyl-1H-pyrazol-4-yl)- |
| CAS | 1071455-14-5 |
| InChI | InChI=1S/C4H7BN2O2/c1-3-4(5(8)9)2-6-7-3/h2,8-9H,1H3,(H,6,7) |
3-Methylpyrazole-4-boronic acid - Physico-chemical Properties
| Molecular Formula | C4H7BN2O2 |
| Molar Mass | 125.92 |
| Density | 1.31±0.1 g/cm3(Predicted) |
| Boling Point | 415.8±47.0 °C(Predicted) |
| pKa | 7.75±0.58(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Store in freezer, under -20°C |
3-Methylpyrazole-4-boronic acid - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | 22 - Harmful if swallowed |
3-Methylpyrazole-4-boronic acid - Introduction
3-Methylpyrazole-4-boronic acid is an organic compound with the chemical formula C6H8BN3O2. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: 3-Methylpyrazole-4-boronic acid is a white to light yellow crystalline solid.
-Melting point: about 196-198 degrees Celsius.
-Solubility: Soluble in water and many organic solvents.
Use:
-Catalyst: 3-Methylpyrazole-4-boronic acid is commonly used as a catalyst for metal ions, especially for C- C bond formation in organic reactions.
-Buffer: It can be used as a buffer to adjust the pH of the solution.
-Coordination reagent: Because it contains a boronic acid group, it can be used to form complexes with metal ions.
Preparation Method:
3-Methylpyrazole-4-boronic acid can be prepared by the following steps:
1. the reaction of pyrazole with methyl trimethylsilylation reagent to generate 3-methyl pyrazole.
2. The generated 3-methyl pyrazole is reacted with boric acid to generate 3-methyl pyrazole -4-boronic acid.
Safety Information:
3-Methylpyrazole-4-boronic acid has low toxicity to human body. However, it is a chemical and the following safety measures should be taken when using it:
-Avoid contact with skin and eyes. Wear appropriate protective gloves and goggles when in use.
-Avoid inhaling the vapor of its dust or solution. Good ventilation should be ensured during operation, preferably in a chemical laboratory or ventilated environment.
-If you ingest or inhale the compound by accident, please consult a doctor immediately and bring the packaging or label for your doctor's reference.
Nature:
-Appearance: 3-Methylpyrazole-4-boronic acid is a white to light yellow crystalline solid.
-Melting point: about 196-198 degrees Celsius.
-Solubility: Soluble in water and many organic solvents.
Use:
-Catalyst: 3-Methylpyrazole-4-boronic acid is commonly used as a catalyst for metal ions, especially for C- C bond formation in organic reactions.
-Buffer: It can be used as a buffer to adjust the pH of the solution.
-Coordination reagent: Because it contains a boronic acid group, it can be used to form complexes with metal ions.
Preparation Method:
3-Methylpyrazole-4-boronic acid can be prepared by the following steps:
1. the reaction of pyrazole with methyl trimethylsilylation reagent to generate 3-methyl pyrazole.
2. The generated 3-methyl pyrazole is reacted with boric acid to generate 3-methyl pyrazole -4-boronic acid.
Safety Information:
3-Methylpyrazole-4-boronic acid has low toxicity to human body. However, it is a chemical and the following safety measures should be taken when using it:
-Avoid contact with skin and eyes. Wear appropriate protective gloves and goggles when in use.
-Avoid inhaling the vapor of its dust or solution. Good ventilation should be ensured during operation, preferably in a chemical laboratory or ventilated environment.
-If you ingest or inhale the compound by accident, please consult a doctor immediately and bring the packaging or label for your doctor's reference.
Last Update：2024-04-10 22:29:15
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