Abstract A series of modular biphenyl building blocks with stepwise adjusted torsion angles and terminally functionalized with leaving groups have been synthesized. The two phenyl rings of the biphenyl synthon are clamped by alkyl chains of various lengths. The desired building blocks 3 and 4 were obtained by copper-mediated C–C biaryl coupling reactions followed by the construction of interlinking alkyl bridges. The key intermediates 14 and 15 ...
