I had an idea, just now, for a potential synthesis of tetrahydrofuran, which has been proving hard to aqquire nowadays.
How about this.
Take butane, kept liquid.
Oxidise the alkane to an alkene.
Epoxidise butene to 1,4-epoxybutene using performic or peracetic acid with a catalytic amount of H2SO4 then reduce the double bond with NaBH4 in a nonpolar solvent with a differing boiling point (and preferably one that doesn't form an azeotrope with THF) or perhaps even catalytic reduction of the double bond with Pd/C 5% and a hydrogen source.
That would be a nice way to make a useful solvent and org. synth precursor starting from OTC butane canisters as sold for blowtorches, lighter refills, camping stoves, etc etc.
What about it?