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

• CAT Number: L037773
• CAS Number: 1007110-53-3
• Molecular Formula: C11H19BN2O2
• Molecular Weight: 222.09
• Purity: ≥95%
• IUPAC Name: 1-ethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole
• InChI: InChI=1S/C11H19BN2O2/c1-6-14-9(7-8-13-14)12-15-10(2,3)11(4,5)16-12/h7-8H,6H2,1-5H3
• InChIKey: PKJCXHILXIEALN-UHFFFAOYSA-N

1-Ethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole(CAT: L037773) is a boron-containing pyrazole derivative often used as a reagent in organic synthesis, particularly in cross-coupling reactions such as Suzuki-Miyaura coupling. The compound features a pyrazole ring with an ethyl group at the 1-position and a boronate ester (dioxaborolane) group at the 5-position, providing it with unique reactivity. The presence of the dioxaborolane moiety enhances its utility as a boron source, allowing it to act as a precursor for forming carbon-carbon bonds in complex molecule synthesis. It is frequently used in medicinal chemistry and materials science for building heterocyclic structures and bioactive compounds.