Abstract The hitherto broadest tetrafunctionalized molecular ribbons (see below) have been synthesized by an iterative synthetic strategy. Such multiple biphenylophanes usually adopt a meander-type conformation and can be used as cyclization precursors in the synthesis of extended nanometer-size tube-shaped molecules.
![1-[3,5-bis(bromomethyl)phenyl]-3,5-bis(bromomethyl)benzene结构式](https://image.chemsrc.com/caspic/231/42601-58-1.png)
