(E)-4,4,5,5-Tetramethyl-2-styryl-1,3,2-dioxaborolane

• CAT Number: L045046
• CAS Number: 83947-56-2
• Molecular Formula: C14H19BO2
• Molecular Weight: 230.11
• Purity: ≥95%
• IUPAC Name: 4,4,5,5-tetramethyl-2-[(E)-2-phenylethenyl]-1,3,2-dioxaborolane
• InChI: InChI=1S/C14H19BO2/c1-13(2)14(3,4)17-15(16-13)11-10-12-8-6-5-7-9-12/h5-11H,1-4H3/b11-10+
• InChIKey: ARAINKADEARZLZ-ZHACJKMWSA-N
• SMILES: B1(OC(C(O1)(C)C)(C)C)/C=C/C2=CC=CC=C2

(E)-4,4,5,5-Tetramethyl-2-styryl-1,3,2-dioxaborolane（Cat No.:L045046）is a boronic ester featuring a styryl group (E-configuration) bonded to a dioxaborolane ring with four methyl groups enhancing its stability. This compound is widely used in Suzuki–Miyaura cross-coupling reactions to form carbon–carbon bonds, particularly in the synthesis of styrene derivatives and conjugated systems. The (E)-configuration contributes to defined stereochemistry in the resulting products. Its stability, ease of handling, and compatibility with various catalysts make it an effective reagent in organic synthesis, materials science, and pharmaceutical development for building complex aromatic or olefinic frameworks.