We describe an efficient protocol for the Suzuki-Miyaura synthesis of ortho-biphenyltetrazoles from non-protected 2-bromophenyltetrazole and arylboronic acids. The optimised conditions were achieved using [1, 1 '-bis(diphenylphosphino)ferrocene]dichloropalladium(II) as catalyst and Na2CO3 as base. A panel of structurally diverse arylboronic acids was used to demonstrate the scope of the coupling procedure. (c) 2005 Elsevier Ltd. All rights reserved.
Probing Polar‐π Interactions Between Tetrazoles and Aromatic Rings**
Noncovalent interactions between the tetrazole ring and aromatic rings were studied using synthetic, spectroscopic, structural and quantum chemical analyses. Our findings have implications in rational design of tetrazole-based drugs and materials.