Dimethyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-YL)isophthalate

• CAT Number: L028747
• CAS Number: 944392-68-1
• Molecular Formula: C16H21BO6
• Molecular Weight: 320.10
• Purity: ≥95%
• IUPAC Name: dimethyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzene-1,3-dicarboxylate
• InChI: InChI=1S/C16H21BO6/c1-15(2)16(3,4)23-17(22-15)12-8-10(13(18)20-5)7-11(9-12)14(19)21-6/h7-9H,1-6H3
• InChIKey: IGSNWXAGFXHYOG-UHFFFAOYSA-N
• SMILES: B1(OC(C(O1)(C)C)(C)C)C2=CC(=CC(=C2)C(=O)OC)C(=O)OC

Dimethyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isophthalate（Cat No.:L028747）is a boronic ester-functionalized aromatic compound derived from isophthalic acid. It features two methyl ester groups and a pinacol boronate ester moiety, making it highly suitable for Suzuki–Miyaura cross-coupling reactions. The boronate functionality at the 5-position allows for efficient formation of C–C bonds with aryl or vinyl halides, facilitating complex molecule construction. Its stable, crystalline nature and functional group compatibility make it a valuable intermediate in organic synthesis, particularly in pharmaceuticals, agrochemicals, and advanced materials involving conjugated aromatic systems or polymer frameworks.