1-methyl-3-phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

• CAT Number: L041331
• CAS Number: 1002334-06-6
• Molecular Formula: C16H21BN2O2
• Molecular Weight: 284.20
• Purity: ≥95%
• IUPAC Name: 1-methyl-3-phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole
• InChI: InChI=1S/C16H21BN2O2/c1-15(2)16(3,4)21-17(20-15)13-11-19(5)18-14(13)12-9-7-6-8-10-12/h6-11H,1-5H3
• InChIKey: NSSUPGLVAJXATA-UHFFFAOYSA-N
• SMILES: B1(OC(C(O1)(C)C)(C)C)C2=CN(N=C2C3=CC=CC=C3)C

1-Methyl-3-phenyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole（Cat No.:L041331）is a boronic ester-functionalized heterocycle featuring a 1-methyl-3-phenylpyrazole core and a pinacol boronate ester at the 4-position. The boronate group enables Suzuki–Miyaura cross-coupling, making this compound highly useful for constructing biaryl and heteroaryl systems in medicinal chemistry and materials science. The pyrazole ring contributes to biological relevance, while the dioxaborolane moiety offers air and moisture stability. This compound is commonly used as a synthetic intermediate for pharmaceuticals, agrochemicals, and research compounds requiring precise and modular aromatic substitution under mild conditions.