Reactivity of N-protected 5-(2-bromophenyl)tetrazoles in palladium-catalyzed direct arylation of heteroarenes or fluorobenzenes

N-protected 5-(2-bromophenyl)tetrazole derivatives have been used as aryl sources in CH bond arylation of a wide range of heteroarenes and some polyfluorobenzenes, using an air-stable diphosphine palladium catalyst to afford (2-heteroarylphenyl)tetrazoles and fluorinated biphenyltetrazoles in high yields.260