The best replacement for diethyl ether is petroleum ether.

The best alternatives to diethyl ether are rated as following:
★★★★★  petroleum ether
★★★  ethanol
★★★  dichloromethane
★★★  ether
★★★  dimethyl ether
★★★  thf
★★  1-butanol
★★  dcm
★  ethyl ether
★  hexane
★  methylene chloride
★  ethyl acetate
★  butanol
★  chloroform
★  hexane more polar

Your alternative for diethyl ether is not listed? Suggest!
Speaking about diethyl ether, one probably shouldn't forget about benzoic acid.

Other search terms related to diethyl ether and their ratings are:
★★★★★ benzoic acid
★★★ hexane
You have in mind a companion for diethyl ether and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of diethyl ether in all years. Click on graph for more.
diethyl ether
petroleum ether
ethanol