A cyclic five-member ring containing this functional group is a common a-protic solvent called T-H-F.
One class of a compound containing this functional group is commercially branded "Cellosolve" and is classified into e-series and p-series, depending on the starting materials used for their synthesis. Chloro-methylation reactions produce the bis-chloro-methyl variety of these compounds as a toxic side-product. One method to form these compounds employs a copper catalyst and high temperatures to cross-couple phenols and aryl halides; that is the (*) Ullmann condensation. A cyclic five-member ring containing this functional group is a common a-protic solvent called T-H-F. They can be synthesized by an S-N-2 reaction between an alkoxide and an alkyl halide called the Williamson synthesis. For 10 points, name this class of organic molecules consisting of two carbon chains single bonded to an oxygen.
One class of a compound containing this functional group is commercially branded
ether [accept furan because of the THF clue]