Quaternary ammonium salts were used as ethylene source for the direct ethylation of benzylic amines. Simple Hofmann elimination delivers the olefin in situ avoiding the need for gaseous reagents and autoclave technology. The alkylation takes place under rhodium catalysis, requiring inert atmosphere, with exclusive selectivity for the C(sp3)-H bond.
Invinity to build 20MWh flow battery in UK
Redux flow cells have had nowhere near the R+D effort compared to Lithium ion. They certainly have the potential (pun not intended) for longer...