GRAPHICAL ABSTRACT Abstract We report an efficient one-pot route for the synthesis of symmetricaldialkyltrithiocarbonates from alkyl halides using carbon disulfide and a basic ionic liquid 1,1′-bis-methyl-3, 3-methylene-bisimidazolium dihydroxide as a reagent and phase-transfer catalyst.
A Novel One-Step Synthesis of Symmetrical Dialkyl Trithiocarbonates in the Presence of Phase-Transfer Catalysis
作者:Ali Reza Kiasat、Mehdi Fallah Mehrjardi
DOI:10.1002/jccs.200800094
日期:2008.6
Symmetricaltrithiocarbonates were directly obtained, in moderate to excellent isolated yields, by the reaction of various primary, secondary, allylic and benzylic halides or alkyl tosylates with a suspension of granulated KOH and alumina in CS2 under phase-transfercatalysis. In this manner, cyclic trithiocarbonates such as 1,3-dithiolane-2-thione can also be prepared without formation of any polymeric
Basic Al<sub>2</sub>O<sub>3</sub> as an Efficient Heterogeneous Reagent for the Synthesis of Symmerical Dialkyl Trithiocarbonates
作者:Ali Reza Kiasat、Foad Kazemi、Ali Savari
DOI:10.1080/00397910701861198
日期:2008.3.1
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 by-product.