1-Ethyl-1H-pyrazole-4-boronic acid pinacol ester
1-Ethyl-1H-pyrazole-4-boronic acid pinacol ester (CAS: 847818-70-6), with the molecular formula C11H19BN2O2 and a molecular weight of 222.09 g/mol, is a valuable organometallic reagent. This pyrazole derivative serves as a key building block in organic synthesis, particularly in cross-coupling reactions. Its pinacol ester form enhances stability and handling, making it suitable for various chemical transformations in research and development.
- IUPAC
- 1-Ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
- Synonyms
- 1-Ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
Organic Synthesis Intermediate
This compound is widely employed as an intermediate in the synthesis of complex organic molecules. Its boronic ester functionality allows for participation in Suzuki-Miyaura coupling and other palladium-catalysed cross-coupling reactions.
Pharmaceutical Research
It serves as a versatile building block for the development of novel pharmaceutical agents. The pyrazole core and the reactive boronic ester group enable the construction of diverse heterocyclic structures with potential biological activity.
Materials Science
1-Ethyl-1H-pyrazole-4-boronic acid pinacol ester can be utilised in the creation of functional materials. Its incorporation into polymers or other advanced materials may lead to unique electronic or optical properties.
| Molecular weight | 222.09 |
|---|---|
| Empirical formula | C11H19BN2O2 |
| Assay | 97% |
| Melting point | 44-49 °C |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1-Ethyl-1H-pyrazole-4-boronic acid pinacol ester used for?
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This compound is primarily used as an intermediate in organic synthesis, particularly in palladium-catalysed cross-coupling reactions like the Suzuki-Miyaura coupling, for the construction of complex molecules, including potential pharmaceutical agents and advanced materials.
What are the CAS number and formula for this compound?
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The CAS number is 847818-70-6 and the molecular formula is C11H19BN2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of 97%. We do not represent it as USP, BP, EP, or any other pharmacopoeial grade.
How should 1-Ethyl-1H-pyrazole-4-boronic acid pinacol ester be handled?
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Handle this compound with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Ensure adequate ventilation to avoid inhalation of dust (H335). It is a skin irritant (H315) and an eye irritant (H319).
Is this chemical suitable for export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including this product, adhering to all necessary regulations for international shipment.
How can I request a sample or quote for this product?
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Please contact our sales team via the website or by phone to request a sample or a quotation. We are ready to assist with your specific requirements.
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