4-Methoxvbenzvl bromide was prepa'rld from 4-methylanisole and NBS 6 the presence of AIBN in refluxing Cc4. 4-Methoxybenzyl ethers were prepared using the standard procedures, employing freshly prepared 4-methoxybenzyl bromide and either NaH in THF at room temperature (for alcohols) or KzC03 in refluxing acetone (for phenols). Boron trifluoride etherate was obtained from E.