A rapid and facile esterification of na-carboxylates with alkyl halides promoted by the synergy of the combined use of DMSO and an ionic liquid under ambient …
The synergy of the combined use of DMSO and an ionic liquid viz.(bbim)+ Br− has brought about a rapid and efficient esterification of sodium carboxylates with acyl and alkyl halides under ambient conditions in excellent isolated yields (90–95%) in short reaction times (12– 40 min).