1-Cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
1-Cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS: 1151802-22-0) is an organoboron compound with the molecular formula C12H19BN2O2 and a molecular weight of 234.10 g/mol. This pyrazole derivative, featuring a boronate ester functional group, serves as a valuable building block in organic synthesis. It is commonly employed in cross-coupling reactions, particularly Suzuki-Miyaura couplings, for the formation of carbon-carbon bonds.
- Synonyms
- 5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole, C12H19BN2O2

Suzuki-Miyaura Cross-Coupling
Acts as a key coupling partner in palladium-catalyzed Suzuki-Miyaura reactions. This enables the efficient synthesis of biaryl compounds and other complex organic molecules.
Heterocyclic Synthesis
Facilitates the introduction of cyclopropylpyrazole motifs into larger molecular structures. This is important for developing novel heterocyclic compounds with potential pharmaceutical applications.
Medicinal Chemistry Research
A versatile intermediate for the synthesis of potential drug candidates. Its structure allows for diverse derivatisation, aiding in the exploration of structure-activity relationships.
Materials Science
Can be utilised in the synthesis of functional organic materials. The incorporation of the pyrazole and boronate ester moieties may impart specific electronic or optical properties.
| Molecular weight | 234.10 |
|---|---|
| Empirical formula | C12H19BN2O2 |
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-Cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole used for?
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This compound is primarily used as a building block in organic synthesis, particularly for Suzuki-Miyaura cross-coupling reactions to form carbon-carbon bonds, and in the synthesis of novel heterocyclic compounds for research.
What is the CAS number and molecular formula for 1-Cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole?
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The CAS number is 1151802-22-0, and the molecular formula is C12H19BN2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and development purposes. We do not specify pharmacopoeia grades (USP, EP, BP, etc.) unless explicitly stated in the product specifications. Please refer to the product specification sheet for available purity and assay details.
What are the safety and handling considerations for this chemical?
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Specific safety data is not provided in the source information beyond its classification. As with all laboratory chemicals, handle with appropriate personal protective equipment (gloves, eye protection) in a well-ventilated area. Consult the Safety Data Sheet (SDS) for detailed hazard information and handling procedures.
How is this chemical packed, shipped, and exported by TSS?
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Tech Serve Solutions adheres to all relevant regulations for the packing, shipping, and export of fine chemicals. Products are carefully packaged to ensure integrity during transit and handled by experienced logistics professionals.
How can I request a sample or quote for 1-Cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole?
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To request a sample or obtain a quotation, please contact our sales department directly through the website or by phone, providing the product name and CAS number (1151802-22-0).
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