Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... An efficient three-step method is described for the synthesis of 2,3-disubstituted furans from (p-tolylsulfonyl)alkanes 6 and 2-benzyloxyethanal. ... Reaction of lithiated 5 with aldehydes followed by proton quench gives 2,3-disubstituted furans 7 in excellent yields on treatment of the ...