This work deals with reaction of alkyl halides with carbon disulfide in the
presence of basic alumina as heterogeneous and reusable reagent. It afforded symmetrical
dialkyl trithiocarbonate in moderate to excellent isolated yields. Reaction of
1,2-dichloro ethane with carbon disulfide also proceeded in a similar manner to give
a five-membered cyclic trithiocarbonate without formation of any polymeric byproduct.
