2-Thienylboronic Acid

• CAT Number: R026390
• CAS Number: 6165-68-0
• Molecular Formula: C4H5BO2S
• Molecular Weight: 127.95
• Purity: ≥95%
• Synonyms: 2-Thiopheneboronic Acid; 2-Thienyl-boronic Acid; 2-Thienylboric Acid; 2-Thienylboronic Acid; 2-Thiopheneboric Acid; Thien-5-ylboronic Acid
• Storage: -20°C
• IUPAC Name: thiophen-2-ylboronic acid
• InChI: InChI=1S/C4H5BO2S/c6-5(7)4-2-1-3-8-4/h1-3,6-7H
• InChIKey: ARYHTUPFQTUBBG-UHFFFAOYSA-N
• SMILES: B(C1=CC=CS1)(O)O

2-Thienylboronic Acid(CAT: R026390) is an organoboron compound featuring a thiophene ring substituted with a boronic acid group at the 2-position. It is widely used as a versatile building block in organic synthesis, particularly in Suzuki–Miyaura cross-coupling reactions for forming carbon–carbon bonds. The thiophene ring imparts aromaticity and electronic richness, making this compound especially valuable in the synthesis of heterocyclic pharmaceuticals, organic semiconductors, and conjugated materials. Its stability and reactivity under mild conditions make it ideal for constructing complex molecules, including biologically active compounds and advanced materials for optoelectronic applications. Researchers favor it for developing new drug candidates and functional materials.